The Cooler Master Riser Cable PCIe 4.0 x16 - 300mm is designed for greater data transmission efficiency, maximum flexibility and durability. High quality plastics grant increased cable flexibility and strength for the tightest PCI card installations, while the heavy-duty shielding prevents electromagnetic interference from degrading signal quality. The multi-layer coated PCB provides the best-in-class cable flex, moisture resistance and performance under high thermal loads. While providing twice the bandwidth of PCIe 3.0, the Gen 4.0 riser cable remains backwards compatible with a maximum transfer rate of over 64Gb/s (bi-directional) and fully supports the 16GT/s bit rate of PCIe 4.0 devices. The multi-layer coated PCB provides best-in-class cable flex, moisture resistance, and performance under high thermal loads. Cooler Master Riser Cables (PCI-E 4.0 x16) are manufactured with high quality 30 AWG tinned copper wires to ensure minimal cable signal delay. This product features 96 ground wires in total with premium EMI shielding technology applied, designed to provide an electromagnetic interference-free data transmission experience. Gold-plated PCI pin are rated 400g of retention force per contact pairs, ensuring maximum product lifespan and durability. UV resistant ABS casing protects cable connection points from rough handling.