PCIe 4.0 Compatible Ultra Durable PCB Heavy Duty Shielding Gold-Plated Pin Connections Protective ABS Casing Ultra-Flexible Cable Sleeves Flex Your Graphics Card MuscleThe 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.PCIe 4.0 CompatibleWhile 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.Ultra Durable PCBThe multi-layer coated PCB provides best-in-class cable flex, moisture resistance, and performan