Today's Dealmaster is headlined by a new Amazon Gold Box sale that has discounted a number of storage products from SanDisk and WD. If you've been in the market for a microSD card for your Nintendo Switch or an external hard drive for backing up files, many of the items on sale are down to all-time lows.

Some highlights here include drops on SanDisk's Extreme line of microSD cards, with the 128GB model down below $20, the 400GB model down to $64, and the massively spacious 1TB model down to a new low of $208. These cards generally perform similarly to the SanDisk Nintendo Switch microSD cards we recommend in our guide to the best Switch accessories , which is to say they're fast enough to record 4K video and operate Switch games comfortably.

If speed isn't as much of a concern as value, the 400GB SanDisk Ultra is U1-rated and thus less performant than a U3 card like the Extreme. But it still provides acres of space for its current sale price of $45. Elsewhere, the sale drops SanDisk's 64GB Extreme Pro SD card to $16; that's another new low for a card that's sufficiently quick and backed by a lifetime warranty. There are plenty more deals on external hard drives and flash drives worth considering, too, and we've listed them out below. Just remember that this sale is a one-day-only affair.

For those who don't need more storage space, we've also got Razer's excellent Viper gaming mouse for its cheapest price yet, Black Friday pricing on Amazon's latest Kindle Paperwhite e-reader, and strong discounts on refurbished Sonos speakers, the Xbox One S All-Digital Edition, Panasonic Eneloop batteries, and much more.

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Top 10 deals of the day

Amazon Gold Box storage deals

Laptop and desktop PC deals

Video game deals

Gaming deals

TV and home entertainment deals

65-inch Samsung RU8000 (2019 model) 4K LED TV for $732.64 at Amazon (normally $897.99).

at Amazon (normally $897.99). 70-inch Samsung NU6900 (2018 model) 4K LED TV for $578 at Walmart (normally $678).

at Walmart (normally $678). Polk Command Bar smart soundbar + subwoofer for $199 at Amazon (normally $249).

Electronics deals

Amazon Kindle Paperwhite (8GB, ads) e-reader + Amazon Kindle Unlimited 3-month membership for $84.99 at Amazon (normally $129.99).

at Amazon (normally $129.99). Amazon Kindle (ads) e-reader + Amazon Kindle Unlimited 3-month membership for $59.99 at Amazon (normally $89.99).

at Amazon (normally $89.99). Eufy Video Doorbell - 2560x1920 for $107.99 at Amazon ( clip $20 coupon and use code: DBSDCD77 - normally $159.99).

at Amazon ( and use code: - normally $159.99). TP-Link Deco M5 mesh Wi-Fi system for $152.99 at Amazon (normally $165).

at Amazon (normally $165). OnePlus 7T unlocked smartphone - 8GB RAM + 128GB storage for $499 at OnePlus (normally $599).

Audio deals

Accessories and miscellaneous deals