SABRENT Rocket CFX PRO 1TB CFexpress Type B Memory Card R1800MB/s W1700MB/s (CF-XXIT-1TB)

This is one serious memory card that maxes out my card reader at peek speeds of 1.1GB/s. It really is the fastest card I have ever used and very impressed with the speed of this card. It comes in a metal protective case for ultra safe keeping in your bag when it is not in. the camera.

(Updated May 11, 2023) This review is for the Sabrent Rocket CFexpress Type B Memory Card in the 1TB capacity (Model: CF-XXIT-1TB). Overall, this is a great memory card for mainstream users, especially if you have a camera or other equipment that can take advantage of the speed and capacity. The card features metal construction and comes in a high-quality case, though despite boasting up to 1800MB/s read, 1700 MB/s write, and a supposed 1300MB/s sustained write speed, the Sabrent Rocket doesn't seem to have a VPG certification. VPG400 is the current gold standard for professional high-bitrate video recording applications, meaning guaranteed minimum sustained write speeds of 400MB/s even under stressful conditions. Hence, the omission is somewhat odd for a higher-end card. The new copper color scheme and higher performance figures separate this new generation of Sabrent Rocket from the previous blue-colored generation.I'm using this card with a Panasonic GH6, which features both UHS-II SD and CFexpress Type B slots, though higher bitrate video recording modes such as ProRes and even some 4K modes require CFexpress. For the GH6 in particular, it's worth noting that at launch, the maximum CFexpress capacity was listed at only 512GB, with 2TB compatibility certification coming later. I shot a few test videos using the GH6's highest 1900Mbps recording mode and encountered no issues, though honestly, I won't be using this mode very often. It's kind of wild to think about, but 1TB is only sufficient for ~70 minutes of recording time at that bit rate!I initially stuck with V60 UHS-II SD cards when I got my GH6 because they're significantly cheaper at equivalent capacities than CFexpress, and for my production needs, compressed video output was (and still is) good enough. Another consideration was that, at the time, I wasn't convinced that the CFexpress ecosystem was mature enough since I heard horror stories of compatibility issues, CFexpress cards getting very hot, etc. I'm happy to report that in my testing, the Sabrent Rocket has exceeded my expectations; I unlocked the complete feature set of my camera, performance was consistently fast, and the card only gets warm. All in all, I think this new generation of CFexpress cards has brought the format into primetime, and it's also worth mentioning that CFexpress might be less costly than V90 SD cards while offering generally better, more consistent performance.Notes:1) CFexpress card performance can easily exceed most laptop USB 3.2 ports; a 10Gbps USB reader will be capped at ~1000MB/s. Some companies sell 20Gbps USB card readers, but typically, only desktop computers are equipped with 20Gbps USB ports.

As an IT professional, I am a super fan of Sabrent products and from 1998 to today I used and still use a lot of Sabrent products and they never disappointed me. This time I got the SABRENT Rocket CFX PRO 1TB CFexpress Type B Memory Card and I am absolutely amazed again. This is a well-made and top-quality Sabrent product from packing to speed.This new generation of the Sabrent Rocket Series is different from the previous blue-colored generation through the use of a new copper color scheme and higher performance numbers. This is the Sabrent new top-end flagship series for the memory card market and it offers amazing write and read speed numbers. Sabrent Rocket boasts speeds of up to 1800 MB/s read, 1700 MB/s write, and 1300 MB/s sustained write, it doesn't appear to have a VPG certification or I am missing something. VPG400 is the current top standard for professional high-bitrate video recording applications, meaning guaranteed minimum sustained write speeds of 400MB/S even under the worst stressful conditions. In my tests, I did not experience any speed issues at all so I am ignoring this detail at least for now.The card is made of metal and comes in a really high-quality case. Sabrent’s Rocket cards are also built tough: they are water, shock, dustproof, and X-ray resistant. You can understand how well and study the card is when you touch it!HIGHLY RECOMMENDED!

The card just flies. It's the fastest card I've ever had in a camera by far. Bursts go on and on where on my other, slower CFexpress card, they'd just slow down and then stop. I haven't had any of the issues i was having before with higher res/higher frame rate video. Everything just works better.Only negative is my computer seems to be the bottleneck when it comes to transferring files. I ran CrystalDiskInfo and the results were nowhere near what they should be so I'm either getting a newer, better USB-C card with better throughput to plug my reader into, or it's time for a new machine.It's a great card. It's worth every penny for things like kid's soccer games and stuff even if you're not a pro photographer. I mean you figure you spent a ton on the camera so why not get a really good card to go with it. The packaging is the best I've seen for a card and just feels so much better than the usual clear plastic cases that most cards come in.I've had really good luck with Sabrent's stuff lately and hopefully this one will continue to be as reliable as it has been so far. Highly recommended.

This worked well for awhile then it stop allowing me to add to it. Now I can’t seem to get my other items off. It’s not reading anything

The card is slow not reach the numbers they mentioned in the description

Nothing really stands out good or bad here. The unit works as advertised, and I haven't had any issues with it yet.

For the price, I do not think you will find anything better, or even faster. Possibly the best price to quality ratio of any card.