The B660 Steel Legend features a six layer PCB with 2oz copper and powerful 9-phase Dr.MOS power phases with DDR4 overclocking capability. USB 3.2 Gen 2x2 connectivity enables the fastest portable storage and external DAS solutions, and PC builders can upgrade their systems with two super-fast PCIe Gen4 NVMe M.2 SSDs. Premium Dragon 2.5Gbps LAN provides faster data transfers and the lower pings for gaming, while a PCIe 5.0 x16 slot is available for graphics cards supporting up to the new standard.