SanDisk SDSDUNC-128G-GZFIN Ultra SDXC Memory Card Up to 80 MB/s, Class 10, U1 FFP, 128 GB, Black/Grey

Well, it's reliable, big, well priced and I can't think of anything that would make this better. Interestingly, when I reviewed this Amazon asked me to rate its "Warmth". Well, I took it out of my X100F and looked at it. It looks like a friendly little card so I gave it a five for 'warmth'. At the end of the day, if I could go back, I'd buy it again. Perfect purchase.

We have bought over ten SanDisk 64 GB and 128 GB compact flash memory cards in the last five years for the RoadHawk HD dash cams in both our vehicles, a Canon PowerShot G15 compact zoom camera, to store our MP3 music files on the in-car entertainment (ICE) of both our vehicles, etc. We trust the brand and have never had any premature failures. This is particularly noteworthy with the vehicle dash cameras because the duty read/write cycle on a monthly basis is quite high since the cameras record continuously at 1080p resolution then overwrite the data when the flash memory card is full. I highly recommend all SanDisk products and these flash memory cards in particular.

I have learned some time ago that 32GB versions of the same card may greatly exceed U1 classification write speed, which is very lowly 10MB/s. U3 should should have write speed of 30MB/s. Well my 128GB has 75+MB/s sequential write speed which will easily handle any 4k compressed video recording in consumer grade cameras. 75MB/s is theoretically good for 600Mbit/s video bit rate recording (75x8). Most consumers' cameras top around 200Mbit/s for 4k recording. My five previous 32GB Sandisks Ultras U1 perform around 40MB/s and as high as 60MB/s write speed, only one is bit slower at around 20MB/s write. Therefore it might be bit of lottery, the cards may perform worse when filling up or with time but just now I feel like it is worth a risk. My Panasonic GX80 records 4k at 100Mbit/s so this card theoretically exceeds this by 6 times. I have no doubts at all that it will perform flawlessly recording high quality 4k with my GX80.

The actual product is faultless. For my needs (a amateur aspiring photographer/videographer) it's brilliant - purely due to the storage amount (I got the 128GB disk. Slotted straight into the camera with no problem, as you'd expect from a Sandisk. The processing speed is just fine for my needs!The only reason I have knocked off one star is due to the packaging. I was expecting to have the item encased in a plastic casing (the type that requires scissors to open). However I found that it was only supplied in a envelope. I was picking up from a Amazon locker, so there was no damage or particular danger in this. However, if this had gone through the post, it could be an issue.

Ah, little plastic card of memories. Having acquired an 8GB card by pure chance I realised I could barely capture 50 or 60 RAW images upon its tiny size. With an upcoming holiday and numerous demands from clients and friends alike to take photographs I realised I needed more memory.My initial idea of buying 10 or 15 of the 8GB cards I already knew and loved proved complex and potentially impractical as I would have to carry numerous cards and devise an ingenious indexing system involving notebooks and secret symbols so I knew what was where. It was only when I chanced upon this lovely that the penny dropped.Why have lots of cards when I could keep everything on just one?On the morning it arrived I was delighted to see Amazon's helper gnomes had already removed the cursed plastic packaging for me and with much excitement found my camera. There were a few minutes of excitement as I wondered whether a larger memory would mean the card wouldn't fit in that little slot so conveniently hidden beneath a protective cover. I need not have worried.Not only did it slide in with no effort at all, I was soon able to take photographs of my lunch, the person who'd parked irresponsibly across the neighbour's drive and various humorous cats, all ready for me to upload to all my Facebook friends later.So thank you, SanDisk, for removing that difficult decision about which images to keep. Now I can take literally hundreds at a time and annoy my friends endlessly.

Picked this up in a lightning deal for around £20. Can't fault it. It does exactly what it says on the tin, and for a 128gb card it's a decent price. I use it in my DSLR and it works fine transferring photos from it onto my laptop, doing so with speed. There are other cards that transfer faster, or have bigger storage, but for my needs this is fine and hits a comfortable price point.

No problems so far. I got it to replace a SanDisk 64GB card which failed (can’t turn off write protection). First failure I have had from about a dozen SanDisk cards and at least it didn’t lose data.Not sure how I am supposed, as asked, to review storage capacity of a 128GB card. You won’t be surprised to know it was 128GB (actually a bit less after formatting).As for the request to review picture quality, that sort of depends more on the camera (pretty good) and photographer (pretty awful).

this was cheaper than the 64Gb card and is a good value card for my canon dslr. Works quickly and is used as any traditional sd card. It came in a cardboard envelope, so impressed with the loss of a plastic packaging that normally adorns them.If you shoot in RAW, this size card is essential...if in jpeg you can get away with smaller but why when the price is this good