Update [June 13, 2025]: The official press release is now live. Click here to read the full announcement.

Since 2008 when USB flash drives really started getting mainstream most IT folks and systems integrators leaned on USB drives with physical write protect switches to safeguard files from tampering or corruption. But that hardware toggle — while once helpful — is on its way out.

Industry insiders say a major USB technology company based in Southern California is preparing to unveil a new type of flash drive that renders the old switch obsolete. According to early chatter, the device uses firmware at the controller level to lock the drive into a read-only state by default — no manual switch, no end-user slipups, and no chance of getting flipped off accidentally.

More intriguing? Sources say the device is password-controlled, re-locks automatically when unplugged, and supports scripting for mass deployment — making it a potential game-changer for government agencies, hospitals, and manufacturing workflows where USB data security isn’t optional.

From what we’ve heard, this isn’t just an upgrade — it’s a reimagining of what write protection on a USB drive should look like in 2025. Keep an eye out for the official announcement, expected within a week or so.

It’s not just the end of the physical USB write protect switch — this marks a new standard for secure flash storage.

Editor’s note: We’ll update this post with a link once the official announcement is live.

The USB Mass Storage Device Protocol defines how USB devices which are attached to a host computer should interact (such as flash drives, external hard drives, and memory cards) and this protocol is critical for allowing stuff to talk with each other in the computer world. Here’s a breakdown of its core components:

In order for a USB flash drives to work interchangeably with other devices a universal standard must be created, defined and implemented for both device manufactures (the flash drives) and the host manufacturers (what flash drives are plugged into). The “Mass Storage Device” is the more technical term for what a USB flash drive is ( or USB hard drive or other memory storage device ) classified as. The classification spells out how communication works between the host computer and USB device.

The following information is a general outline and meant for non-technical readers to better understand the USB Mass Storage Device is. A link at the bottom will direct readers to a more technical resource, say someone reading up from a computer science class.

Let us start with the “Device Class and Protocol”

As mentioned the Mass Storage Class (also known as MSC) is a set of specifications which define a standardized way the USB device will present itself and communicate with the host (what it is plugged into); for example a computer, smartphone a car stereo or even the USB socket you find on a passenger plane. All of these “hosts” must conform to a specific way to communicate with the device.

Although we mention the USB socket of a plane, that particular situation doesn’t require “data transfer” and it’s only meant for power; although a specification is still required even when only dealing with power and/or charging. With that said, the most common protocol used for MSC devices is the “Bulk Only Transport” or BOT. The BOT is a method defining how data is either read or written from one device to the other. The BOT is designed to be fast and optimize data transfer while at the same time providing a reliable and stable code base for transferring data.

As a side note, the BOT was improved with UASP. The newer UASP (USB Attached SCSI Protocol) was introduced for the USB 3.0+ speed of devices. The UASP improves the older BOT by allowing faster data transfer rates and better performance to the devices which support the newer UASP.

So whether the host and attached device, say a USB flash drive, use BOT or UASP the commands used come from the SCSI (Small Computer System Interface) protocol. This protocol was developed in the late 1970s and ultimately introduced to the public for use in 1986. So the SCSI protocol has been around for a very long time.

One pillar of the SCSI protocol is the “block device” appearance of a device connected to a computer. This block device approach helps organize data and allows the two to communicate in blocks. Remember the most basic, 1024? the block device approach allows data transfer to work more efficiently and organized than other approaches.

The Mass Storage Device specification will classify data transfer speeds. This type of classification will setup the host computer and device on the best method to communicate. This is important because you want to define a Mass Storage Device’s ability to transmit data, during either the read or write operation, to an optimal speed for best performance. So for example, you don’t want a USB 3.0 hard drive communicating with the host computer at USB 2.0 speeds. The classification for data transfer will sync up the proper protocol.

It’s mind blowing to think that storing a terabyte of data used to cost about 100 billion dollars. Nowadays it fits on a $20 flash drive (MSRP is closer to $100)

In 1956, IBM introduced the first hard drive, the IBM 305 RAMAC, which had a storage capacity of about 5 megabytes (MB). The cost of this system was approximately $10,000 per megabyte, meaning the entire system would cost around $50,000 for just 5 MB of storage.

To calculate the cost of 1 terabyte (TB) of memory in 1956 using this rate:

• 1 TB = 1,024 GB
• 1 GB = 1,024 MB
• 1 TB = 1,024 x 1,024 MB = 1,048,576 MB

At $10,000 per MB, the cost of 1 TB would have been:

1,048,576 MB * $10,000/MB = **$10,485,760,000** (over 10 billion dollars)

So, 1 TB of storage would have cost over 10 billion dollars in 1956.

By 2020, the cost of storage had decreased dramatically due to significant technological advancements in the storage industry.

In 2020, the cost of storage was approximately $0.02 per gigabyte, which translates to $0.00002 per megabyte. Using the same calculation as before:

• 1 TB = 1,024 GB
• 1 GB = 1,024 MB
• 1 TB = 1,048,576 MB

At $0.00002 per MB, the cost of 1 TB in 2020 would have been:

1,048,576 MB * $0.00002/MB = **$20.97**

So, 1 TB of storage would have cost around $21 in 2020.

Although the Covid pandemic is officially over, from that time, people are paying more attention to the cleanliness of things they come in contact with. Because this website is dedicated to USB technology, it’s probably worth a mention about the Microban Technology used with USB flash drives from Verbatim.

Microban technology is a type of antimicrobial technology that is incorporated into products during the manufacturing process to provide continuous antimicrobial protection against a range of microbes such as bacteria, mold, and mildew.

Microban works by disrupting the vital life processes and biological functions of microbes that come into contact with the treated surface. This disruption helps to prevent the growth and proliferation of these microbes.

Verbatim is now incorporating some of their USB flash drive products with this Microban technology. Consider the following:

If someone handles a flash drive with unwashed or unclean hands, they can transfer bacteria or other microbes onto the surface of the drive. Common bacteria from hands could include Staphylococcus aureus or Escherichia coli (E. coli).

Flash drives are often carried in pockets, bags, or purses where they can pick up dirt, dust, and other contaminants that may contain microbes. Pockets and bags are not always the cleanest environments, especially if food, tissues, or other items are stored alongside the flash drive.

The Verbatim flash drives are available from Amazon in 16GB, 32GB and 64GB capacities. The “Pinstrip” drive uses the Microban technology.

Microban technology was developed by a team led by Dr. John H. McConnell in the mid-1960s. Dr. McConnell, along with his colleagues at Microban Products Company (formerly known as Microban International), pioneered the use of antimicrobial additives for various applications, including consumer products, textiles, and industrial materials.

Using the “Imagine with Meta AI tool, we have not found the correct prompts to generate a realistic looking USB flash drive. This is the best we’ve come up with. If someone is having success creating an AI version of a USB flash drive, please let us know! (gmo [at] getusb [dot] info)

Encrypting a USB flash drive is quick and easy in Windows 10. The PRO version of Windows 10 will allow anyone to activate Microsoft’s built in bitlocker technology to encrypt an entire flash drive, or part of a USB flash drive.

Microsoft BitLocker is a disk encryption technology designed to enhance data security by encrypting entire disk volumes on Windows operating systems. Introduced with Windows Vista and included in subsequent versions, BitLocker provides a robust defense against unauthorized access and data breaches.

The primary purpose of BitLocker is to protect sensitive data in case a device is lost, stolen, or accessed by an unauthorized user. It uses full-disk encryption to secure the entire contents of a disk, including the operating system, system files, and user data. Even if someone physically removes the hard drive and attempts to access it on another system, the data remains inaccessible without the proper authentication credentials.

BitLocker employs various encryption methods, with Advanced Encryption Standard (AES) being a commonly used algorithm.

The encryption process is transparent to the user once configured, and access is granted through authentication methods like PINs and passwords.

Below are nine screen shots and simply follow along in your Windows 10 Pro computer and do what you see below. The process is very easy to do. The longest part of this entire setup is the encryption of the USB stick itself. The time required to encrypt the drive will depend on a couple of factors, such as the GB capacity of the USB drive and the processing power of your computer. In the example below, using a USB 2.0 device with a 16GB capacity the encryption time took only 4 minutes.

Is it worth buying a USB 3.1 USB flash drive?

The tech industry, tech nerds and tech blogs will definitely say that buying a USB 3.1 flash drive is worth it. After all, these blogs need something new to write about and new links to generate for affiliate advertising, but are these blogs reporting back valuable information before someone spends their hard earned cash?

Let us compare the write speed difference between a USB 3.1 flash drive and a USB 3.0 flash drive to see what information we can uncover.

Universal Serial Bus (USB) has different transfer speeds based on the version of technology, we did a write about that earlier. The USB 3.1 specification has a transfer rate which taps out at 1,250 MB/second (Megabytes per second). The USB 3.0 specification has a transfer rate which taps out at 625MB/second. Of course this is the theoretical maximum transfer speed. When anyone says “theoretical transfer speed” they are implicating all conditions are ideal. For example, the host computer has the horsepower and bandwidth to push that much data and the receiving device (in this case, flash drive) has equal throughput to receive that data. But is that the real world – is it worth buying a USB 3.1 USB flash drive?

Below are some images and here is the general order of what you will be reading:

• Screen shots of the USB device type (USB 3.0 and USB 3.1)
• Screen shots of benchmark software testing both USB technologies
• Screen shots of a real-world copy jobs using a Windows computer

From the screen shots below you can see a USB 3.0 flash drive and USB 3.1 flash drive. Both flash drives use an SMI controller for the USB 3.0 and 3.1 technology. These are the same high quality and higher performance controllers seen in iPhones and NAND memory used from Micron Technology. The NAND memory type is MLC (multi-layer cell memory) is slower than SLC NAND memory (single layer cell). Note: USB flash drives do not use SLC memory because the NAND memory price is too expensive and the SLC supply is very small. Flash drives are produced at mass scale and meant to be a low cost data transfer and storage tools – speed is not the #1 priority, despit all the marketing we read online.

Here are benchmark speed tests for both USB devices in discussion today.

The program has two test settings for benchmarking a speed test. One test setting is for the theoretical maximum speed of the device and writes data directly to memory without accounting for operating system and device overhead for were the data is stored. Think of this as a random write test to any available sector on the flash drive.

The second test setting is a write sequence which includes the operating system and device overhead cache for placing files in the file allocation table. This means extra time is spend during the data transfer to log where each sector is written along with the calculation required to write the next bit of data. This second test setting is more like a real-world experience.

Speed benchmark software is designed to provide a relatively quick summary of the device capability. So the first test setting is designed to show the theoretical maximum write speed or “burst” write speed. The second test setting is designed to show a more “sustained” write speed. Any benchmark software is designed to provide a quick and easy snap-shot of what the device can do – but can the device do it?

Readers can download the USB Scrub software for speed benchmarking their flash drives. The software is 100% free, no installation or sign-ups, and includes other cool features like registry cleaning and making image files of flash drives. USB Scrub download link

IronKey is the bell-weather for encrypted flash drives. The company, owned by Kingston Digital, a Southern California based private company, uses hardware encryption chips with their USB flash drives which provide the highest level of security known to mass storage devices.

GetUSB.info came across an amazing story by Wired Magazine about how one of the authors at Wired sent an IronKey to a hacking company called Unciphered in Seattle Washington to see if they could access the drive. The did.

This is not an easy task to accomplish. IronKey uses encryption to safeguard important data with FIPS 140-2 Level 3 certified, FIPS 197 certified and XTS-AES 256-bit encryption. The solution allows for 10 tries before the USB controller wipes the device clean of any data. So there is a big risk-reward for using the device and losing the password to the device.

However, Unciphered developed a method to allow more attempts than just 10. It is not entirely clear how many attempts Unciphered is able to apply, but it’s more than 10.

Why is this significant, other than the fact IronKey may now have a security issue on their hands? It is well known in early 2021, a report of just over 7,000 Bitcoin were stranded in an IronKey flash drive due to a forgotten password. The owner, Programmer Stefan Thomas, did not utilize the Enterprise Management Service for password recovery. The 7000 bitcoin is currently (as of Oct 2023) worth over $235 million dollars.

To give Wired Magazine their due credit, read the full story by Andy Greenberg.

Users can turn disable USB flash drive pop up messages in Windows 10 by performing a very simple step in Settings. While it may seem counterproductive to turn off USB notifications in Windows 10, once you’ve been using Windows for a while you will likely want to reduce the number of pop-up messages.

There are two ways to disable USB flash drive messages in Windows. Performing a RegEdit or modifing a Settings feature in the Windows GUI

Disable the USB flash drive pop up message via Windows Registry Edit

• Open RegEdit by typing “regedit” in the Search bar
• Navigate to: HOKEY_LOCAL_MACHINE\SOFTWARE\Miscrosoft\Shell\USB
• Click the USB folder on the left of the screen to highlight the registry entries for \USB\
• On the right side of screen select “NotifyOnUsbErrors” by clicking on it
• Right click and select “Modify”
• Set the value to “0” (zero). Zero is off, One is on

NOTE: Most users will receive a message saying they do not have privileges to modify the registry value. That is meant by design, and please see the comments at the end of this article for why.

Disable the USB flash drive pop up message via Settings

• Type “settings” in the Seach bar of Windows
• Select “Devices”
• Select the USB tab near/at the bottom on left
• Uncheck “Notify me if there are issues connecting USB devices

The second method via Settings is the preferred method because changing registry entries is not recommended unless the user is very experienced with computers. Windows 10 does a good job of not allowing users make registry changes that would crash their computer or brick the operating system, but the risk is still there.

If you received some sort of permissions message when attempting our regedit method, I would stay away from trying to resolve that security message. The reason Miscrosoft locks downt he registry in certain areas is to provide a more secure computer system for the user and reduce potential risk of malware or hackers getting control of your computer.

Over the years, numerous reports have come out about how hackers will expose certain USB protocols to insert malware or take control of a system. The registry is the main point of focus for hackers.

If you are persistent about changing the registry entries the first thing you can try is running RegEdit as Administrator. If that doesn’t resolve your issue then you may Google search for your specific error message and see if another website offers up a solution.

Microsoft has not made an official announcement on why the option to format FAT32 is no longer available for devices 64GB in capacity and above.

In both Windows 10 and Windows 11 the format option given by Windows is either NTFS (New Technology File System) or exFAT (Extended File System). The option to format FAT32 is no long available in Windows.

Without an official announcement from Microsoft we can only speculate the reason is do to single file sizes averaging a larger size as of 2023.

The largest single file size supported by the FAT32 file system is 4GB. This is due to the limitations of the file system’s design. FAT32 uses a 32-bit file allocation table, which means it can address up to 4,294,967,295 clusters. Since each cluster in FAT32 is typically 4KB in size, the maximum file size is limited to 4GB (4,294,967,295 clusters multiplied by 4KB per cluster).

If you need to store files larger than 4GB, you will need to use a different file system that supports larger file sizes, such as NTFS (New Technology File System), exFAT (Extended File Allocation Table), or others. NTFS, in particular, is commonly used in modern Windows operating systems and supports much larger file sizes, making it suitable for storing large files and operating system installations.

We speculate, to reduce customer inquiries or complaints to Microsoft they have eliminated the option of FAT32 to any device of 64GBs or larger in capacity. The reason is that a user will receive an error message from the device when an attempt to copy a single file of 4GBs or larger to a FAT32 device. To reduce the frequency of error messages, by formatting the device as exFAT will eliminate this error.

The ExFAT (Extended File Allocation Table) file system supports significantly larger file sizes compared to FAT32. The maximum file size supported by ExFAT is a staggering 16 exabytes (EB), which is equivalent to 16 million terabytes (TB) or 16 billion gigabytes (GB). This vast file size limit allows for storing extremely large files, such as high-resolution videos, large databases, or disk images.

ExFAT was specifically designed to overcome the limitations of FAT32, including the maximum file size restriction. It is commonly used in various devices and operating systems, including Windows, macOS, and some embedded systems, for handling large files and providing interoperability between different platforms.

It’s important to note that while ExFAT supports large file sizes, the actual maximum file size might be limited by the specific implementation or the capabilities of the storage medium itself.

If the above information was helpful, please consider looking at some advanced flash drives offered by Nexcopy. Advanced functions include USB copy protection, USB write protection, USB CD-ROM, and HIPAA compliant flash drives. These functions are done at the hardware level and are universal solutions.

Me: ChatGPT – Would you be so kind to write a five paragraph thriller novel about international espionage where a USB flash drive is used to hid secrets from the KBG.

As a renowned international spy, Sasha had faced countless challenges and dangers. But nothing had prepared her for the mission she had been tasked with. She was to retrieve a USB flash drive that held vital information about the KBG’s plans to launch a massive cyberattack on the United States. The stakes were high, and the clock was ticking.

Sasha knew the risks involved in such a mission, and she was willing to go to any lengths to complete it. She flew to Moscow under the guise of a journalist and managed to sneak into the KBG’s headquarters. The flash drive was heavily guarded, and Sasha knew she had to act fast. With her quick reflexes and stealthy moves, she managed to grab the drive and slip away unnoticed.

But the KBG wasn’t going to let go of their secrets so easily. Sasha soon found herself on a secret plane bound for Washington DC, with KBG agents hot on her heels. With time running out, she had to come up with a plan to keep the flash drive out of their hands.

As the plane took off, Sasha felt a sense of relief. She had managed to outsmart the KBG and keep the flash drive safe. But her relief was short-lived when she realized that the flash drive was corrupted, and she couldn’t access the information it held. Someone had tampered with it.

Sasha knew she had to act fast to uncover the truth. She suspected that there was a mole within her agency who had sabotaged the mission. She had to find the mole before it was too late. With the clock ticking and danger lurking around every corner, Sasha set out on a perilous journey to uncover the truth and protect her country from a devastating cyberattack.

As Sasha raced against time, she found herself embroiled in a deadly game of cat and mouse. With the KBG hot on her heels, she had to stay one step ahead of them to uncover the truth. But with the fate of the country hanging in the balance, Sasha knew she had no choice but to risk everything to protect it.