Transcend128GB SDXC 300S Memory Card UHS- I, C10, U3, V30, 4K, Full HD, Up to 95/40 MB/s (Ideal for Digital Cameras) TS128GSDC300S

This 128 GB memory card is excellent value and holds many videos and photos.

I brought as a package deal with a camera,but unfortunately it was the wrong s card so I couldn't use it with the camera but I'm sure it will come in handy at some point.

I bought this so when i am out filming i dont have to worry about my memory card filling up on me like i would with the 8gig cards. very handy and transfer to pc at a good speed.

As you see the overall write speed is 54 mb/s. The read speed is 94 mb/s.But the price and size 512 Gb is great. But I try to write video with 4k 30p 100m without problem on my Sony a7R3.

Am sooo pleased with the storage capacity, and it really was fab value for the price, however unfortunately due to the digital photo frame I have, it’s not compatible, but hey ho my bad (I did go through the frames instruction pamphlet but couldn’t find clear and concise details of what size I should use) and only through trial and error and a lot of help from a techie friend I discovered I only needed a16 gb memory card!!!! it’s a fab purchase ❤️

Update 29/02/2020: Revising this review to 1 star since it seems the majority of these cards are being mis-sold now. I bought another of these for my wife's camera, the 64 GB (59.6 GiB) this time, and that too wasn't 64 GB but 60 GB (55.9 GiB). In one of the marketting pictures you can see a 256 GB 500S card next to a 480 GB 300S card. Looks like they revised the newer 300S cards to 30/60/120/240/480 GB but someone decided to keep labelling them as 32/64/128/256/512 to avoid looking inferior to the competition, betting on the fact that people know a card will show a smaller capacity in Windows, just perhaps not knowing how much smaller it should be. I reported this to Amazon at the start of January '20 and was told they were investigating it, but nothing seems to have been done and they continue to sell these illegally mislabelled cards.UPDATE: After receiving a second of these cards I noticed that the second card had the correct capacity of 119 GiB (128 GB = 119 GiB), which made me realise the first card's capacity of 112 GiB is incorrect (112 GiB = 120 GB). Since the cards are sold as 128 GB I returned the first card for a replacement, but the replacement's packaging looked identical to the card with wrong capacity so I returned that too.The true 128 GB/119 GiB card has these features: the red on the packaging is darker than the red on the card; the card's label is stuck on straight; the white "Transcend" text on the card has a suble border; the barcodes on the back are on a sticker with print quality the same as the rest of the packaging and the date on the sticker was 05.2019; and the write speed meets the specification of 45 MB/s in CrystalDiskMark.The 120 GB/112 GiB card has these features: the red on the packaging is lighter than the red on the card; the card's label is not stuck on straight; the white "Transcend" text on the card doesn't have a subtle border; the barcodes on the back are printed with poorer quality than the rest of the packaging with a slight left slant of the top barcode and date 12.2019; and the write speeds don't meet the specification of 45 MB/s in CrystalDiskMark.I'm leaving my review as 5 stars for now because of the possibility that the 120 GB cards are fake. If they're a real and newer revision of the card then they are being misleadingly sold as they're 120 GB and not 128 GB, not to be confused with the sizes shown in Windows which are 112 GiB and 119 GiB.After researching different SD cards I decided on these for my a6400. Looking at a6400 reviews online, the UHS-I slot of this camera maxes out at 39 MB/s, so I looked for the cheapest SD card from a reputable manufacturer that meets this speed for writes, which was this.I'd read online that there are a lot of fake SD cards around, so on receiving the card the first thing I did was fill it up completely, since fake cards are often smaller capacities with firmware that reports they're the size you bought, meaning they work fine to begin with but then fail after you pass their actual capacity. All worked fine! The text on the packaging was also very sharp, with the exception of the barcodes, which look to be applied at a later stage of manufacture (the area they're printed on is not laminated like the rest), and it opened easily without destroying the warranty info as I saw other people report, so it looks like their packaging has been improved or I got lucky.I did some CrystalDiskMark benchmarks (picture attached): one at empty and one at almost full (1 GB free required for the benchmark) with the default allocation unit size of 128 KB, and then two more empty with 8192 KB and 8 KB allocation unit sizes. 24MP JPEGs are roughly 12 MB so 8192 KB is the largest allocation unit size you can use without losing any any space on the card when shooting RAW+JPG or JPG (files that would be smaller than the allocation unit size take up at a minimum, the allocation unit size in space, e.g. 32768 KB allocation unit size means a JPG that would be 12 MB takes up 32 MB instead). There were no meaningful differences in speed at either allocation unit size though so I set it back to the default of 128 KB. All tests were done using the Transcend RDF9 card reader and the card formatted with the exFAT file system.

I bought this for recording a choral concert in 1080p rather than UHD on my Panasonic GH5 camera, using an external Rode microphone, and it did the job superbly and am now aiming to transfer the footage onto blu ray for others to enjoy it. I normally use Extreme Pro cards but didn't need to on this occasion not using 4K. The results were outstanding.

Great storage at budget price. I used it on my HP Stream Laptop to expand memory as it would not store latest Windows 10 updates. Unfortunately HP does not let me load Windows onto it which is nuts but is not the fault of this memory card.