How many drives can the ASUS PB62 support and what are the specs?

The ASUS PB62 supports two drives: a single M.2 2280 slot running at PCIe Gen 3 x4, which is fine for everyday NVMe SSDs, and a 2.5-inch SATA III bay for a hard drive or SSD. No extra SATA ports, so choose your 2.5-inch drive strategically.