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(Pocket-lint) - The Black Friday sales are here - it falls on 26 November in 2021, followed by Cyber Monday on 29 November - and that means there are some superb deals on microSD and SD cards for the likes of Android smartphones, cameras, or the Nintendo Switch. 

Where are the best TV deals on Black Friday?

US SD card retailers

UK SD card retailers

We're going to be highlighting many of the best deals around the Black Friday and Cyber Monday sales period below, based on the US and UK. You can quick-jump to the section you want with the links below.

UK Black Friday SD card deals | US Black Friday SD card deals

Best US Black Friday SD card deals

Nintendo SanDisk 128GB microSD card - just $19.99
Lexar 128GB microSD card - just $15.99
PNY Pro Elite 256GB SD card - just $34.99

Best UK Black Friday SD card deals

SanDisk Extreme 128GB microSD card - just £16.99
Nintendo SanDisk 128GB microSD card - just £16.49
SanDisk Ultra 256GB microSD card - just £20.89
SanDisk Extreme Pro 128GB SD card - just £23.49
SanDisk Extreme Pro 512GB SD card - save 65%

See more Black Friday offers

Why you need a microSD card

Considering most modern Android smartphones, digital cameras and the Nintendo Switch require a multimedia card for storage expansion, with the last of those nigh-on demanding one to play anything but the smallest of indie games, it's a good idea to get a card in order to make the most of your devices.

A triple-A Switch game, for example, takes up between 5GB and 25GB of storage space, so getting your hands on a 128GB card means you can store more than 20 extra games. If you already own a Nintendo Switch you'll know exactly how frustrating it can be to archive a game (uninstall it) just to play another.

One of the most important things to note is the speed - cards that boast speeds of 100Mb/s (V30) and above are ideal for Switch gaming, although you can opt for something a little slower if you don't mind longer loading times.

That V30 speed is also fine for HD video capture, with the faster speeds (from V60/V90 UHS-II card types) aimed at vloggers and enthusiast videographers. The V90 cards cost a lot more money, but are much faster, designed for 4K or even 8K video capture at high bitrates - so most people won't need those unless for specific tasks.

A final word of warning: stick to the known brands when it comes to buying a card. Lexar, SanDisk, Samsung, Kingston, Panasonic, PNY are the most prominent and reliable. We've heard many a story about apparent knock-off cards in the market - those with naff names, typically - that offer far less storage capacity and/or speed when they arrive. We'll only highlight reliable sources in our deals.

Writing by Jason Denwood. Editing by Adrian Willings.