There are many great memory card deals live for Cyber Monday, here is a run-down of the best deals available at this time (organized by class of card). Each of the deals below represent a significant savings (from 10-40%) off the regular price.
Compact Flash
The current best deal on high-speed (160 MB/s) CompactFlash is on two-packs of Lexar UDMA 7. Two 128GB cards for $180 is a stellar price point, the best deal available for 160 MB/s compact flash.
Highest Speed UHS-II SDXC
These are super-high speed UHS-II cards (up to 300 MB/s) that rate in the top-tier of performance on the EOS R in real-world tests.
High Speed UHS-II SDXC
In the EOS R, the Sony M-series cards rate at about half of the speed in real-world tests, but still at a sufficient speed for 4K recording. About half the price of the G series, when you buy a 2-pack bundle. The Lexar cards rate even 20% slower than the Sony M-series, but you can save even more.
High Speed UHS-I SDXC
Great memory cards for 6D Mark II, the SD slot of 5D Mark IV, and when doing long-burst shooting and/or 4K video recording. This card maxes out the performance of the SD slot on the 5D Mark IV in real-world tests.
Medium Speed UHS-I SDXC
Great cards for all-round shooting, Rebel-class and 80D or 77D. Still U3-rated, so this should be sufficient for most typical video shooting needs. Can’t beat the price!
CFast 2.0
Sold out due to the fantastic sale, but you can backorder to get this great price.