Product Name: metal Pen Drive Bullet USB Flash Drive 4GB 8GB 16GB 32GB 64GB Pendrive Flash Model NO.: USB037 Security Check: Support Security Check Function: Storage USB Disk Color: Black, White, Red, Blue, Green, Pink, Orange USB Type: Creative USB Disk Open Style: Swivel/Rotating Material: metal Shape: Stick Interface Type: USB 2.0 Storage Capacity: 1GB-256GB Size:Length/Width/Height: 5.8cm*1.8cm*1cm Certification: RoHS, Ce, FCC Trademark: OEM, ODM Transport Package: Poly Bag, PP Box, Paper Box, Blister, Tin Box Specification: ROHS. CE. FCC Origin: China HS Code: 8523511000 Product Description metal Pen Drive Bullet USB Flash Drive 4GB 8GB 16GB 32GB 64GB Pendrive Flash1. USB connection,support Hot plug & Play.2. No external power supply .3. Support different types of os.4. Solid State Storage, Shock proof and electromagnetic proof.5. Durable data storage.6. Fast speed in write/read transfer.7. Hardware Requirement: PC with USB connection,Notebook,MAC.8.Capacity:4GB/8GB/16GB/32GB/64GB/128GB.about real capacity4GB = approximately 3.6GB-3.9GB8GB = approximately 7.4GB-7.8GB16GB = approximately 14.2GB-15GB32GB = approximately 28GB-30GB64GB = approximately 58GB-60GB128GB = approximately 110GB-120GB