Used with a SONY α7RV. Product Name ProGrade Digital CFexpress 2.0 Type A COBALT 160GB VPG400 Maximum Transfer Speed Read 800MB/s, Write 700MB/s Purchase Date November 2022 (Amazon Japan) Description I am selling this because the memory card I can use has changed due to a camera replacement. I have used this without any errors, and it has worked without any problems.