1. Seal type air duct, which can discharge heat well and heat quickly; 2. With OLED temperature display, the M.2 heat sink is endowed with the function of real-time temperature display; 3. It is made of metal and processed by CNC in many processes. The texture is fine with anode sandblasting process; 4. With small turbine blower cooling fan, air cooling more efficiency; 5. The radiator is equipped with nano silicone thermal pad, with a thermal conductivity of 8 W / km, which can conduct the hard drive well to the heat sink. Specification: Applicable specification: 2280 specification M.2 interface SSD Temperature display: OLED display Voltage: DC 12V Display accuracy: accurate to 0.1 Celsius Real time display: temperature can be displayed, 1ms ultra-high temperature adoption rate Colour:Black Material:metal Size:72x23.9x14.7mm Package Contents: 4 x M.2 2280 SSD Heatsink Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.