UHS-II interfaces are backwards compatible with UHS-I cards UHS-II cards have two rows of chips and the theoretical transmission speed is 312M B/s.The theoretical transmission speed is 104 M B/s UHS-I cards only have a single row of chips on the back of the card, and a UHS-I interface is only designed to read this row.With these interfaces, you not only need to pay attention to the size of your memory card, but you also need to check whether or not your card is UHS-I or UHS-II. TF card and SD card interfaces are used for memory cards. There are three main types of file transfer interfaces: TF card, SD card, and USB. If you can't quite picture the difference, here's an example: With this kind of hub, you can easily carry your laptop around with you and keep the hub connected the whole time. Wire-free hubs have built-in connectors which plug directly into your laptop's ports. This allows you to move the hub around more on your desk, but the cable can also get in the way or affect portability. Wired hubs have a built-in cable which connects to your laptop. The first is the classic wired connection, and the second is a wire-free hub which plugs directly into your laptop. Connector TypeĪt present, there are two USB-C hub connection types. So, instead of pulling out your wallet, you'd be better off putting on your reading glasses and checking out our list of 5 things to consider when choosing a USB-C hub or docking station. With one of these, you can transform just 1 of your laptop's USB-C ports into multiple ports allowing you to reclaim the connectivity options that we used to have.īut if you rush straight to Amazon and buy the first hub or docking station that looks cool, there's a good chance you'll end up with something that either doesn't work, or doesn't do everything you need it to do. That's where USB-C hubs and docking stations come in. So what are you supposed to do if you love the portability of notebooks, but you still want to be able to connect multiple devices, plug in external hard drives, or hook up to an external monitor? One side effect of this trend is that, generally speaking, these ultra-thin notebooks come with next-to-no ports. While that might be great for those who are looking for portability, it doesn't come without its drawbacks.

It seems like every year, laptops and notebooks get thinner, lighter, and more compact.

Usb 2 vs usb 3 picture quality