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Posts Tagged ‘secure digital’

What is the Difference Between a TF Card and microSD Card?

In general terms the TF card and microSD card are the same. They are the same in physical size and same in most technical terms. The two devices may be used in exchange with each other.

There are some technical differences between the two which will be explained later, for now, the biggest difference between a TF card and microSD card is the history of the name.

The TF card came out first. TF card or T-Flash or TransFlash was first to market from SanDisk in 2004. SanDisk, in partnership with Motorola, created the TF card specification. The TF card was the smallest read/write memory form factor and was designed for mobile devices (thus the small size).

TF cards are based on NAND1 memory. The TF card did not last long. At the end of 2004 the Secure Digital Association, which is the governing body over Secure Digital media, absorbed the TransFlash technology and re-branded as: microSD.

This implies, the life of the TF card ended in late 2004 and the microSD card has been available ever since. This will explain why you cannot find a “TF” branded card today (2020). The other reason you cannot find TF cards today is the maximium size of only 16MBs or 32MBs at the time of production. Today you cannot find any memory device with that small of gigabyte capacity.

Here is the technical difference between the two: Micro SD cards can support SDIO mode, which means they can perform tasks unrelated to memory, such as Bluetooth, GPS, and Near Field Communication. Whereas a TransFlash card cannot perform this kind of task.

SDIO mode stands for Secure Digital Input Output, a type of Secure Digital card interface. It may be used as an interface for input or output devices.

The SD Association devised a way to standardize the speed ratings for different cards. These are defined as ‘Speed Class’ and refer to the absolute minimum sustained write speeds. Cards can be rated as Class 2 (minimum write speed of 2MB/s), Class 4 (4MB/s), Class 6 (6MB/s) or Class 10 (10MB/s). It’s important to note that these are the minimum, so it’s entirely possible a card can achieve faster speeds.

NAND is not an acronym. Instead, the term is short for “NOT AND,” a Boolean operator and logic gate. The NAND operator produces a FALSE value only if both values of its two inputs are TRUE. It may be contrasted with the NOR operator, which only produces a TRUE value if both inputs are FALSE.

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20 Target SD Card Duplicator (UberGeek Review)

20 Target SD Card Duplicator for Bulk SD Copying

Update: Since the original post, Nexcopy has redesigned their SD card duplicator box. The image from the original post has been updated to reflect the current 20 target SD duplicator model. (Jan 2024)

Nexcopy recently unveiled its industry-leading edge in the market with the all-new SD200PC 20 Target SD Card Duplicator; a 20-target SD Card Duplicator designed for tech-savvy professionals and businesses immersed in Secure Digital media. While duplicating 20 copies of a personal SD card may initially raise eyebrows, Nexcopy is catering to a niche market—specifically targeting companies engaged in distributing software applications on SD cards for field devices or managing large quantities of miniSD cards for fleets of portable electronics.

The SD200PC is compatible with microSD cards, making it a valuable tool for phone companies to efficiently load promotional materials onto phones for their customers. With the increasing power of smartphones and PDAs, coupled with expanding media storage capacities, more individuals and businesses rely on microSD cards for critical data distribution.

With ease-of-use in mind, the SD200PC connects via USB and features 20 numbered SD ports, simplifying the identification of each card. The accompanying software supports FAT, FAT32, exFAT, NTFS, and even proprietary formats an OEM or manufacturer may have developed. This is possible thanks to its bit-by-bit copy engine that makes a perfect digital clone of the master SD card. The duplicator is compatible with Linux distribution packages and caters to complex embedded applications. For less tech-savvy users, Nexcopy provides a user-friendly job wizard within the software to guide them through the duplication process.

Priced at $1,299, the 20 Target SD Card Duplicator offers exceptional value considering its advanced features and immediate availability for delivery. While the investment may seem steep for casual users, it’s a crucial tool for businesses and tech enthusiasts requiring bulk SD card duplication with high reliability.

The Nexcopy SD200PC provides a sophisticated solution for organizations distributing SD card content and tech professionals seeking fast, efficient, and accurate duplication capabilities. With its broad compatibility, user-friendly features, and competitive pricing, the 20 Target SD Card Duplicator stands out as a top choice for managing large volumes of SD and microSD cards effectively.

SD160PC is USB 3.0 Speed SD Card Duplicator

Nexcopy expanded its line of flash memory duplication equipment with the USB160PC, a 16-target USB duplicator built on USB 3.0 technology back in 2014. This system offers a significant performance boost compared to older USB 2.0 models, such as the SD200PC, which requires approximately six minutes to write 1GB of data. With the USB160PC, that same 1GB data load can be transferred in about one minute, providing IT professionals, content distributors, and production teams with a far more efficient duplication process. The enhanced speed is especially beneficial for environments where large volumes of data or high-capacity drives are used, reducing overall production time and increasing throughput without compromising reliability.

Both the USB160PC and the SD200PC are fully compatible with Windows 11 operating systems. This ensures that regardless of whether users choose the high-speed USB 3.0 duplicator or the widely used 20-target USB 2.0 solution, they can seamlessly operate these systems on modern PCs, maintaining productivity and compatibility with current technology standards.

Nexcopy provides specialized hardware solutions capable of reading the CID (Card Identification) values from Secure Digital (SD) cards—a unique serial number programmed by the card manufacturer that cannot be altered or accessed through standard operating systems. Unlike basic software utilities that interact with the file system, reading a CID value requires low-level communication with the SD card controller, which is not possible with a typical PC card reader. Nexcopy’s proprietary hardware is specifically designed to interface directly with the SD card’s protected registers, extracting this data accurately and reliably. This functionality cannot be achieved with software alone because most consumer-grade card readers do not expose the necessary hardware commands, making dedicated Nexcopy equipment essential for CID reading applications such as security authentication, device whitelisting, and digital rights management solutions.

People want to write a CID value to a Secure Digital (SD) card primarily for security, licensing, and device authentication purposes. The CID (Card Identification) value is a unique, manufacturer-programmed identifier stored in the SD card’s controller. Certain industries and software developers leverage this ID as a hardware-based “fingerprint” to bind applications, encryption keys, or digital content to a specific card.

By writing or customizing the CID value, organizations can:

  • Prevent Unauthorized Copying: Lock digital content or licensed software to a specific SD card, preventing it from being copied and used on another device.
  • Enable Secure Boot or Device Pairing: Some embedded systems or IoT devices use CID values for secure boot processes, allowing only whitelisted cards to operate with their hardware.
  • Facilitate DRM and Content Protection: Media companies can distribute protected files that only work with cards having pre-assigned CID numbers.
  • Streamline Manufacturing & Tracking: Hardware manufacturers can pre-program cards with known CIDs for inventory control, traceability, and product authentication.

Because the CID is typically locked at the factory level and not changeable with standard readers, specialized hardware like Nexcopy duplicators is required to program custom CID values, making this an essential capability for businesses that rely on hardware-based security measures.

Source: PRWeb

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