Synology DiskStation DS1621+

Internal 6x 2.5"/ 3.5", SATA 6Gb/s, hot swap, External 4x Gb LAN, Additional connections 3x USB-A 3.0 (host), 2x eSATA (host), 1x PCIe 3.0 x8 (x4 electrical), 2x M.2 / M-Key (NVMe / PCIe, 2280), RAID level 0/1/5/6/10 / JBOD (via extensions), CPU AMD Ryzen Embedded V1500B, 4x 2.20GHz, RAM 4GB DDR4 ECC SO-DIMM (1x 4GB, 1 slot free, max.32GB), Fan 2x 92mm, 25.2dB (A) Power consumption 51.22W (operation), 25.27W (idle), Dimensions 282x166x243mm (WxHxD), Weight 5.1kg, Special features iSCSI, DLNA client, BitTorrent client, FTP server, iTunes server, WebDAV, 256bit AES encryption, SSD cache / TRIM support, theft protection (Kensington Lock)