This Transcend 4 GB JetFlash 500 Retractable USB 2.0 Flash Drive is perfect for those who need a reliable and fast external drive. It features hot plug support, hot swap, and a USB port, making it easy to use and convenient to carry around. With a read speed of 2000MB/s and a write speed of 2x, you can quickly transfer your files and data. This 4 pack bundle includes four Transcend 4 GB JetFlash 500 Retractable USB 2.0 Flash Drives, each in black color and with a writable format of 2.0. It is compatible with PC and has a storage capacity of 4 GB. The product line is Transcend and the model is TS4GJF500.