Sony SF-G64/T1 High Performance 64GB SDXC Uhs-II Class 10 U3 Memory Card with Blazing Fast Read Speed Up to 300MB/S

I'm a landscape photographer who recently took up wildlife photography. As a landscape photog, we don't need high speed memory cards. A single exposure for us can take seconds if not minutes and longer. Now with that said, I always by quality pro cards, usually cards that read/write 90-95 MB. These cards have served me well over the years...until I took up wildlife photography that is. I bought a Nikon D500 which has an impressive FPS, more than my 95 MB cards could handle. They did okay in a pinch but I needed faster writing cards! The Nikon D500 takes the much faster XQD card (as well as an SD slot). I've never needed one and did not have one on hand. So I got to looking online and 64 GB XQD was on back order by just about everyone including Amazon. The Bald Eagles was calling and my D500 was collecting dust! So I did some looking around to see if anyone made a faster SD card.That is when I ran across the Sony SF-G64/T1. It has a Read speed of 300 MB and Write speed of 299 MB or up to that I believe. It was only a $100~. I've always used Scandisk pro cards and I was hesitant about Sony cards. I just didn't know anything about them...other than they make good XQD cards. So I ordered one. My first impressions was wow! This thing was light years faster than my 95MB pro cards. My 95MB gave it a good try but it didn't take long holding the shutter button before it would lag up. The Sony SF-G64/T1 has amazing speeds for an SD card! I really love this card!Conclusion: I was able to finally secure a 64 GB XQD card but since my D500 has two card slots, XQD & SD, I use the Sony SF G64/T1 as a back up in the SD slot. I would recommend this card to anyone!

Works great Sony A7R3

Of the comparable memory cards with the UHS-II designation, this one seemed to be of the best value. My only need to purchase this and replace my current SDXC cards was being forced to by my Sony A7 III if I want to shoot 4K in Sony’s XAVC S 100M (100mbps bitrate) setting. This card has a write speed of 299Mbps but let’s face it, actual speeds can be much lower. My old card, a Samsung Pro, has a rated write speed of 90mbps but actual speed is lower. Before making a decision on memory cards, you should check out some tests to ensure that actual speeds match your needs. Some cameras and SD card interfaces won’t be able to use the UHS-II speeds as well, so definitely figure that out before committing to a card of this price. Overall, I think this card is great for Sony 4K applications.

Wicked fast. Insanely fast for an SD card. I use this with my GH5 and have had no issues. The only con is the price. For the slightly slower "M" version of this Sony card, you can get a 128GB for cheaper than the 64GB of the G series. And the M series is still fast enough for 400Mbps on the GH5. So this card is basically overkill.Remember, when dealing with bit to byte conversion, divide by 8. So in order to shoot 400Mbps (megabits per second), you only need a card that has a write speed of at least 50MBps (megaBYTES per second). So this card obviously blows that out of the water. I would honestly just get the cheaper M version instead of this G version due to the price difference.But, if you want an insanely fast SD card that will be somewhat future proof for faster data rates, then this is the one.

UHS-II cards are indeed crazy fast. If you have a camera that will operate at those speeds (such as my Sony A7RIII), then you owe it to yourself to take advantage of that speed. It makes burst and continuous shooting so much easier when your buffer can keep up. If you don't photograph a lot of action or use burst/continuous shooting much, the extra speed may be unnecessary for you. These cards are VERY pricey for the amount of storage they hold, though, so I would only get them if you know you're going to need the extra speed. Otherwise a UHS-I card will serve you just fine for half the cost.

Not much to say, it’s an SD card. It’s UHS-II and isn’t slowing down my α7 III. The second slot would be the culprit if that were the case. It is hard to tell in normal usage, though. I haven’t run any benchmarks and my photo storage drives are mechanical. They max out at about 100 MB/s writes. I’m getting 80-100 when copying to my computer so there’s nothing out of the ordinary there.Unless it fails on me prematurely, it is what it is. It handles long bursts of 10fps of uncompressed 24MP RAW . Solid product and comes in at a lower price than my usual Sandisk Extreme Pro cards. I feel fine recommending them and will purchase more for backup, capacity upgrades, and replacements.

Exceptional speed and works perfectly in my D850. Obviously it works best in a UHS-II card slot, but it could be useful to keep in mind that even if you have a UHS-I card slot, you would still benefit from the extra speed when transferring the files from the card over to your computer (assuming that you have a UHS-II card reader).When it comes to memory, use a trusted brand and don't screw around with the risk of having a cheap card potentially get corrupted or die on you. Also keep in mind that even the best memory cards have a lifespan so if reliability is important to you, it's generally a good idea to periodically buy new cards anyway while you rotate older cards out and away from mission-critical use.

So far so good. I am using this in my Sony A7r III and I'm quite happy with the combo. I haven't explicitly tested read/write speeds but the card has kept up with the camera no problem. I use a dedicated high speed reader (Kingston) that supports up to 5 GB/s so the card is the bottleneck but blazing fast for transfers compared to my 100 MB/s cards this is substantially faster in my real world use.It might seem a bit pricey but the performance is there in my opinion and until other options pop up that can deliver on this speed this is one of the best ways to maximize your high performance imaging and video applications.