Synology 16 Bay NAS RackStation RS4017xs+ (Diskless) Port RJ-45: 2 x 10GbE RJ45 (10GBase-T) 4 x 1GbE RJ45 Port USB: 2 x USB3.0 HDD Interface: 16 x 3.5/2.5 SATA HDD / SSD Port Others: 2 x Expansion port Form Factor: 3U Processor: Intel Xeon D-1541 8-core 2.1 GHz, burst up to 2.7 GHz Default/ Max. Memory: 8 GB DDR4-2133 ECC UDIMM, expandable up to 64GB RAID: Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10