Best Overall
Nextorage 512GB CFexpress 4.0 Type A
Key details
- Capacity
- 512 GB
- Warranty
- 5 years
- Read / Write
- 1900 / 1700 MB/s
- Sustained Write
- 850 MB/s, VPG200
Read speed is the figure printed largest on every box, and this Nextorage card leads the group at 1,900 MB/s, with 1,700 MB/s on the write side. The number that earns it the top spot is the quieter one underneath: an 850 MB/s sustained write under a VPG200 rating. Sustained write is what decides whether a long take keeps rolling or stops at the buffer, and 850 MB/s sits comfortably above anything Sony's in-camera codecs ask for.
The 512 GB capacity is the sensible middle of this group: a full day of stills or a long interview session without a swap, and not so much room that the card dominates the cost of a new kit. Five years of warranty is longer than most here, and the drop, x-ray, and temperature claims cost you nothing until the day a card rides loose in a bag and comes out working.
The only reason to look past it is capacity, and for multi-hour events or long-form interviews the Lexar 1 TB card doubles the room. Otherwise this is the one we point to first. It also carries the highest buyer rating in the group, which for a product holding footage you can't reshoot is not a small thing.
Pros
- Highest read speed in this group at 1,900 MB/s
- 850 MB/s sustained write with VPG200 certification
- 512 GB with a five-year manufacturer warranty
Cons
- Less capacity than the 1 TB Lexar card
Our pick for most Sony shooters: the fastest read speed here, an 850 MB/s sustained write, and 512 GB at a price that undercuts the premium cards.