SanDisk SDCFX3-004G-A31 4 GB Extreme III CompactFlash Card (Retail Package)

I have several SanDisk Extreme III compact flash cards: 2Gig and 4Gig cards. I've never had a problem with any of them, and they are fast, not only to write to (if you have a camera that can write a lot in a burst, as I do, both a Canon 30D and a Canon 40D) but it's also really fast to copy your pictures off of these cards to a PC, especially if your PC's reader can process them quickly! On my 30D and 40D cameras, I save both the large JPG and the RAW files to the SanDisk cards, and I can shoot in the mode that will take many per second, and these cards have always been able to keep up with the cameras. I will only use these. I have shot in temperatures from 110 degrees F and in places below -10 degrees F with these cards, and I have never a problem with the cards.

You have to be careful, though, as once I bought one of these from an online auction place, for a price that was too good to be true, and it turned out to look like a real one, but it was a knock off. It was not as fast as the real thing (it didn't have a serial number on it, but other than the missing serial number, it looked real). So, buyer beware. I returned it to the seller who was on the other side of the world from me. Cards sold directly from Amazon have never been a problem for me - I buy cameras and camera components all the time from Amazon, and have always been happy with each purchase.

Today I attended a birthday party and took about a hundred pictures - I could have taken almost 4,000 with my new SanDisk SDCFX3-004G-A31 4 GB Extreme III CompactFlash Card. Taken with a Canon Power Shot S419 (not a high end camera by any measure), I had 100% super fine shots. The product and provider get an A+ rating.

this memory card is a great performer: fast, secure, durable, and came at a great price from adorama via amazon. and an honest, reasonable shipping charge, to boot!

I've been using this 4GB Extreme III CF Card in my Sony A300, and have been very happy with its performance. No problems. And when used in conjunction with the SanDisk Extreme USB 2.0 3in1 card reader (# SDDRX3-3IN1-901), download speeds to my PC are LIGHTNING fast!

I definitely recommend this card, especially when paired with the Extreme card reader.

This CF card is fast. Once the buffer is full on my 40D, you don't have to wait too long. Otherwise, the card gets the job done.