Bulk Pack: 50 pieces - Perfect for company logos, personal engraving, and much more. Reliable and durable drives that are easy to carry around, pass out or keep as backup. Fast and efficient transfer speeds! - 1GB USB 2.0 Flash Drive with cap up to 12MB/s Read and 4MB/s Write speeds for Mac and PC 5V self-powered Plug and Play- Hot Swappable- external media- portable drive 70mm x 20mm x 7mm