Hard drive disk
Object is one platter from a hard disk drive. It was found in a pack of four bound with a zip tie. With the pack was a post-it reading, "Quantum model Q540."
||Deprecated LLNL number written on the outer edge
||Written in ink in the center
overall: 1/8 in x 5 1/8 in x 5 1/8 in
Memory & storage/disk