Lexar Professional 2000x 128GB SDXC UHS-II/U3 (Up to 300MB/s Read) w/USB 3.0 Reader - LSD128CRBNA2000R

The speed mentioned (Both writing and read) is satisfactory. Never found any lag in transfer...Happy with the purchase.

I use this in my XPro-3 : I have 2 identical Lexar 2000x 64GB UHS-IIThe other one W:179 MBytes/s R:183 MBytes/sThis card only W:080 Mbytes/s R:083 MBytes/sTests reported by H2testw.exe v1.4Latest update : I decided to perform a low level formal on the cardAnd this restored it to 180 MByte/s performance ; now they are both equalDo test your SD Cards and format (not quick format) them to restore performance

This was bought for my Olympus OM-D EM-1 MkII. I was told that these SD card would help improve transfer speeds to the card. If you think about the back of the card, there are brass coloured connectors at the bottom. This card twice has many connectors. This makes it transfer data in and out of the computer much faster. Much faster than I'm used to.This doesn't work with all cameras, however, so before you buy it, check you camera can utilise UHS-2 cards to this gain in speed, before you buy them, as they're a waste of time and money, if you can't use them.Because of this speed boost, they're a little pricey.. So you've got do decide the time gains, are worth the expense. If it isn't then the UHS-1 cards should/would be of greater use.

The media could not be loaded.  It now locks every time you put it in a device.This started at the weekend, but was curable, out with a Sony a7II, now after downloading the images, it is permanent.Swapped memory cards with an A7 and the problem swapped, so tried its dedicated USB reader and that pushes the locking switch only part way. see Video. Look at the line that intersects the range of the switch (You need three handsfor this, I only had two)With a magnifying glass the good card (from a7)seems to be a snugger fit than the expensive one. I do not believe I have ever locked a card I am using in a camera.From Amazon so return should be OK, But They say it can only be returned in a little over a month. And a feel this is a design issue

Item arrived in the stated packaging (went for original packaging as it comes with card reader). The card formatted right away in my D500, speed tests on high (10 fps) allowed up to about 150 shots before the buffer bottomed out. I don't think I'll ever need that kind of buffer since if I haven't captured something in 149 shots I'd give up.All in all a great card, well made and fast. I cannot comment on longevity but if the card does fail I will update here.

I read reviews and special comparisons where this card was put up against the Sony and Sandisk cards, which are very much more expensive. This card compared very favourably in those tests and when considered against the price difference I decided to go with this card.I am now using two of these in a Sony A1 and I’m extremely happy with them for both shooting and for transferring the files to my desktop pc.