Kingston U3 SD Memory Card Review

Kingston SD Memory Card ReviewKingston makes a few different cards with different speed classes. Most aren’t very popular except their U3 memory card, which is an incredible card that I always recommend as a great alternative to the Sandisk Extreme Pro Memory Card

In terms of in-camera UHS-I performance, the Kingston U3 card is almost always in second place, just below the Sandisk Extreme Pro by about one or two megabytes per second. Like Sandisk they also have a lifetime warranty. 


Kingston U3 UHS-I Memory Card Sizes

The Kingston U3 card can be found in four sizes – 32GB, 64GB, 128GB and 256GB.

Memory Card Name32GB64GB128GB256GB
Kingston U3 Memory CardAmazonAmazonAmazonAmazon


Real World Memory Card Performance

Read and write speeds for the Kingston U3 cards are some of the best out there for UHS-I cards. Although the card is rated for 90MB/s read, and 80MB/s write, I get slightly faster results with USB 3.0 tests. In-camera results can usually get very close to maximizing the cameras potential, which you can see in the memory cards speeds of the Canon 6D II.

Memory Card NameUSB 3.0 ReadUSB 3.0 Write
Kingston U3 Memory Card98.1 MB/s90.4 MB/s



Speed Class: U3 / Class 10

UHS-I devices

See what all the symbols and numbers mean on memory cards in this guide.



Limited Lifetime Warranty