16GB USB 2.0 Flash Drive 4 Pack, A Set of 16 GB 360&deg; Rotation Thumb Drives with Keychain, 16gig Multipack Jump Drive for Computer (Multicolor) by MOSDART SUPER SAVER PACK - Includes 4 multicolour units bulk of 16GB USB 2.0 Memory Drive packed in a compact and eco-friendly box COMPATIBILTY AND INTERFACE - Supports almost all operating systems including Windows Windows 2000/7/8/8.1/10/Vista/XP/2000/ME, Linux and MacOs 10.3 and above. No need to install any additional drivers to use to the jump drives. Compatible with USB 2.0 and backwards. 360 TWIST AND TURN DESIGN - The Metal Clip rotates 360 around the ABS plastic body having a rubber oil finish. The Metal Clip is integrated with a key chain loop which helps you to protect your zip drive from getting lost. FORMAT - FAT32. If want to transfer files that are more than 4GBs, need to format the usb stick to NTFS Format. WHAT YOU GET - 4 units of 16G USB2.0 pen drive with 30 days return policy and 1 year warranty on manufacturing defects.