EK-Quantum Vector XC3 RTX 3070 Backplate – Black is a CNC machined retention backplate made from black anodized aluminum, that fits all EK-Quantum Vector XC3 RTX 3070 water blocks. Backplate for the EK-Quantum Vector XC3 RTX 3070 The backplate covers the whole length of the graphics cards PCB, serves as an aesthetic add-on, and also provides passive cooling for the backside of the voltage regulation module (VRM), the GPU core, and VRAM.