QNAP TS-h973AX-32G 9-bay Desktop NAS, fully integrated and tested complete NAS solution with 5 x MG04ACA400E - 4TB Toshiba enterprise SATA 6Gb/s 7200 RPM 256MB Cache 3.5" hard drives for 20TB total capacity plus 2 Seagate Nytro 480GB SSD drives for cache, Qbit tested, shipped RAID Ready to use out of the box. AMD Ryzen V1500B 4C 8T 2.2GHz, 32GB DDR4 SODIMM, 5 x 2.5"/3.5" SATA 6Gbps + 2 x 2.5" U.2 NVMe PCIe Gen3 x4 / 2.5" SATA 6Gbps + 2 x 2.5" SATA 6Gbps drive bays. 2 x 2.5GbE, 1 x 10GBASE-T Multi-Gig (10G/5G/2.5G/1G/100M), USB 3.2 Gen2 Type-A and Type-C, supports capacity expansion with QNAP TL and TR expansion enclosures.