Thank you for viewing. This is a 512GB SDXC card with UHS-I V30 specifications. It is brand new and unused. Brand: Nextorage Memory Storage Capacity: 512GB Maximum Transfer Speed: 100MB/s Read, 80MB/s Write Item Weight: 2 grams I won't be using it, so I'm offering it to someone who can. It will be shipped via Nekopos, etc.