Very suitable for installing mining equipment. No driver is required. The 4 holes on riser clamp are used for installation. Use LED indicators and fuses on circuit board. The graphics card power supply uses 8 solid capacitors to make graphics card power supply more stable and . 6PIN interface makes graphics card of motherboard to reduce load on motherboard. This reduces burden on motherboard when connecting multiple graphics cards. The PCI-E connector uses multi-layer shielded cables, which can be connected to a maximum of 3Meter without attenuating signal. The USB cable is soft and stable, easy to route, and graphics card can be placed at will. The card slot is equipped with a fixing buckle, which makes it easier to remove graphics card and fix graphics card, and graphics card will not fall off from slot. The power cord uses pure copper wire to avoid during use. Colour: black + red Material: PCB + metal Package Contents: 5 x 16X adapter cards 5 x 1X adapter cards 5 x USB cables 5 x SATA power cables Only above package content, other products are not included. Note: Light and different displays may cause color of item in picture a little different from real thing. The measurement allowed error is +/- 1-3cm.