looking for better SDXC card for Sony A7s that doesn't keep locking up

N

Nicholas Natteau

Veteran
I've been using a Transcend 128GB SDXC card (60MB/s) with my Sony A7s for over a year now. But lately, I'm unable to insert the card into my A7s without the lock switch on the card sliding back into locking position. No matter how delicately I insert the card, the lock switch has become so loose that it keeps sliding into lock mode.

Can anyone recommend a sturdier SDXC card for the A7s, one with a lock switch that is much more resistant to sliding back as the card is inserted.

Thanks very much in advance.
 
My Lexar 64GB SDXC has been going strong for 6 months, not the best anecdotal evidence but maybe more people will chime in.
 
This web site has some pretty good tests on a number of SD cards in most recent cameras:

http://www.cameramemoryspeed.com/


The fastest SD card in most tests, in most cameras, has been the Sandisk Extreme Pro 95 Mbs. A very close second has been the Lexar 1000x.

I bought 2 of the 64 GB Sandisk for about $80 on sale about 11 months ago and have been very, very happy with them. I have used them in Nikon, Canon, Panasonic, and Sony cameras with good results! (Sony A7II, A6000, RX100IV.)

I also have some older Sandisk 30 Mbs that I never had any trouble with for the 2+ years that I used them. I have 5 Lexar 32GB, I think the 600x, and those have also been good cards for me.

I have been looking at 128 GB cards lately, because I have been filling up the 64GB at events, shooting 4K on the GH4 and G7. If I had to buy now, I would probably buy the 2 pack of the Lexar 1000x 128GB for $120 at B&H, Amazon, etc.

I looked at the 128GB Lexar UHS II 1000x cards, at about $150 for 2. That would help to "future proof" the cards a bit, for when (more) cameras are UHS II compatible. But they are a lot slower than the UHS 1 Sandisk 95 Mbs and Lexar 1006x cards in current cameras. The Lexar 2000x UHS II appear to be almost as fast as the UHS I Sandisk and Lexar 1000x, but a) they are a lot more expensive, and b) I haven't seen the 128GB anywhere, just the 64GB.

Not a direct answer, but I hope that helps! I usually try to swap out my cards when I see a good sale. If you need them right away, check the prices on the cameramemoryspeed.com site. Use his affiliate links if you find his information useful (I have no connection! I just chatted with the guy when the 7DII was new and I bought the Sandisk 64K Extreme Pro 95Mbs for that camera, for wildlife.)

Good luck!
 
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I have some 64GB 80MB/s Kingstons that work great. They write consistently at 80MB/s and read at 90 MB/s with a Lexar USB 3 Compactflash/SD reader.
 
I've started using the Lexar 633x U3 128GB (~$47) and 64GB (~$25) SDXC cards because I upgraded to the A7RII which requires U3. They are about the least expensive U3 cards and still quite fast and will work with other U3 4K cameras which will be more and more common. Then again there are plenty of other more expensive cards out there, but I like having cards that work well consistently but can practically treated as disposable.
 
Thanks very much everybody. Will check out all of these.

But in terms of the lock switch on the side of the SDXC cards, are there any brands that are sturdier than others? Maybe I just happened to be unlucky with this particular card. I've never had any other card develop this issue, so perhaps it was just this one that got loose over time.
 
Nicholas Natteau said:
Thanks very much everybody. Will check out all of these.

But in terms of the lock switch on the side of the SDXC cards, are there any brands that are sturdier than others? Maybe I just happened to be unlucky with this particular card. I've never had any other card develop this issue, so perhaps it was just this one that got loose over time.
Click to expand...

I believe it gets loose over time and then makes the outer layer of the card separate.

It actually happened to my oldest Lexar Professional SDXC from 2011 about three years after of intense use.
 
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