Overview Reviews Product Description Special Order! 2.2GHz AMD Ryzen V1500B, 4GB DDR4 ECC SODIMM RAM (2 slots, Upgradeable to 32GB, 2x 16GB Max), 6 x 3.5" or 2.5" Drive Bays, 3 x USB 3.0, 2 x eSATA Port, 4 x Gigabit LAN, 1 x 4lane PCIe x8 slot for optional 10GbE or M.2 SSD adapter card, Max IP Cams 40 (2 Free Licences). Compatible RAM Models: D4ECSO266616G (DDR4 ECC SODIMM) 16GB D4ES018G (DDR4 ECC SODIMM) 8GB D4ES014G (DDR4 ECC SODIMM) 4GB Expansion Unit Available DX517 (5 Additional Bays) Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Synology Synology DS1621+ 6 Bay 2.2GHz QC 4GB RAM NAS 3Yr Wty Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments