Synology DiskStation DS1520+

Internal 5x 2.5 "/3.5", SATA 6Gb / s, hot swap, External 4x Gb LAN, Additional connections 2x USB-A 3.0 (host), 2x eSATA, 2x M.2 / M-Key (PCIe, 2280), RAID level 0/1/5/6/10 / JBOD (via HDD extensions), CPU Intel Celeron J4125, 4x 2.00GHz, RAM 8GB DDR4 (1x 4GB soldered, 1x 4GB, 0 slots free, max.8GB), Fan 2x 92mm, 20.8dB (A), Power consumption 36.67W (operation), 15.51W (idle), Dimensions 230x166x223mm (WxHxD), Weight 2.26kg, Special features iSCSI, 256bit AES encryption, iTunes server, DLNA server, FTP server, WebDAV, 4K transcoding, SSD cache / TRIM support, theft protection (Kensington Lock)