Alldaymall 8GB Metal Key Shaped USB Flash Drive, 8-Piece (adm-8g-493) Supports - PC, Mac, Unix Convenient - small, cap-less and pocket-sized for easy transportability Durable - Metal casing with sturdy ring easily attaches to devices Storage - perfect for keeping all of your documents, videos, music and photos handy Capacity - with capacities available up to 8GB you'll always have plenty of storage available