ADATA 4 GB Panda Theme USB 2.0 Flash Drive AT809-4G-CWH Support USB 2.0, backward compatible with USB 1.1 Built-in storage space design on the cap for USB connector. Rubber material. Water proof and shock absorption. COB process for PCBA Mascot-designed flash drive Attached metal ring and nylon string for strap installation Lifetime Warranty Rubber material. Water proof and shock absorption. Cute cartoon panda design Built-in storage space design on the cap for USB connector. Support USB 2.0, backward compatible with USB 1.1