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.
In 2015 Intel introduced the Compute Stick or Computer Stick – the item has been around from that point onward. The idea is simple and elegant. Intel wanted to create an HDMI dongle computer which can run Windows 10.
There is no confirmation, but our suspicion is that Intel wanted a ultra-cheap and portable solution to run Windows for embedded applications like set-top boxes (DVRs) and other IoT (Internet of Things) products. If our assumption is correct, it’s a wonderful product and is a great solution for its intended purpose.
PCWorld did an incredible overview of the Compute stick in 2016, and a connection link to that article is at the footer of this post. The PC World review outlined the specifications and performance levels of the Intel based product. We will let that article do the heavy lifting for the tech people out there, but today we want to talk about the applications one might have for a computer stick.
For only $120 (ish) off Amazon, this is an excellent solution to run Windows 10 for a host of specific applications.
Several bullet points worth mentioning right out of the gate:
Today Apple announced the new iPadOS will support USB thumb drives. The iPad has long been toughted a workers tablet from Apple, but the relaity is their iPad didn’t provide much functionality. In addition, the devices have limited storage.
With today’s announcement the above argument could get a little muted.
Update: We learned the iPad will allow other storage devices such as external hard drives and SD or microSD cards (with USB adapters). The USB port will also allow for HID devices, such as a USB mouse and keyboard. We are not sure if the iPad will support Bluetooth mouse and keyboard, but we’ve got to assume, right!
There is no word about the connection. The connection could be one of three; an adapter, USB-C socket size or the classic USB type A socket size.
Source: GetUSB.info News Site.
Micron, with the corporate office based in Boise Idaho,
introduces the c200 microSD card with a data storage range from 128GB to
1TB. No that wasn’t a typo, One Terabyte
of storage. The card was designed to
address the demand around 4K video recording and playback.
The card has read speeds near 100MB/s and write speeds of
near 95MB/s. The c200 card collection
can reach these speeds because of Dynamic SLC cache; which is intelligent maintenance
during idle time for sustained peak performance. The Micron microSD card uses the UHS-1 Speed
Class 3 for capture and Video Speed Class 30 for support. Meaning to get these transfer rates, the host
device must also be UHS-1 compliant.
In case you are wondering, the card uses Micron 98-layer
3D QLC NAND memory, which is cost effective for both consumers and commercial customers.
If you have an Android device, you can be even happier
with the card meeting the Application Performance Class 2 specification which
is built-in memory expansion for compatible Android devices.
The Application Performance Class 2 (A2) is defined by the
Secure Digital (SD) Physical 6.0 specification. A2 makes SD memory cards higher
performance devices than A1 devices by using functions of the Command Queuing
and Cache framework. The Application Performance Class can be applied to UHS
SDHC/SDXC Memory Card product family.