Features: 1. Use the aluminum alloy U disk shell to install the internal motherboard, which is convenient to carry, safe and reliable. 2, the interface definition is directly marked on the shell, at a glance, convenient and practical. 3, 5V, 3.3V are provided at the same time, which is convenient for you to connect 5V and 3.3V target boards. 4, the internal motherboard with 500MA self-recovery fuse, completely protect your expensive computer motherboard. 5, red and blue two-color LED indicator, convenient for you to observe the working status of ST-LINK V2 from time to time. 6, delivery 4 and DuPont line, so that you can easily deal with different target board line order. 7, the outer packaging uses anti-static bag, automatic sealing machine sealed packaging, safe and reliable, not afraid of static electricity, not afraid of water. Specifications: Color: Red, Black, Gold, Green, Gray, White, Blue, Pink Send by random Type:USB Adapter Package List: 1 x ST-Link V2 Simulator Download Programmer 1 x 20cm-debugging DuPont line