The ASUS PB62 runs a Gen 3 NVMe slot alongside a SATA bay — enough for two drives

The ASUS PB62 runs its single M.2 2280 slot at PCIe Gen 3 x4 — not cutting edge, but perfectly adequate for everyday NVMe SSDs that saturate the Gen 3 bus anyway. Alongside it sits a 2.5-inch SATA III bay that’ll take either a hard drive or SSD. No extra SATA ports, so choose your 2.5-inch drive strategically.