Synology DX517 5-Bay Expansion Unit To Suit 3.5"/2.5" SATA SSD/HDD(5), 80mm Fan(2), eSATA, 200W PSU
Synology RX418 4-Bay Expansion Unit- Diskless, 1U Rackmount
Synology DX1215II Expansion Unit - 12 Bay 3.5" / 2.5" SATA HDD / SATA SSD Hot Swappable, Expansion Slot, RAID, 550W
Synology RS822RP+ RackStation 4-Bay 3.5" Diskless 4xGbE NAS (1U Rack), AMD Ryzen V1500B quad-core, 2GB RAM, 2xUSB3.2, 1 Expansion Port
Synology RX1217 RackStation 12-Bay Expansion Unit - Diskless, 2U Rackmount 3.5/2.5" SATA SSD/HDD(12), 80mm Fan(3), Rackmountable, 500W PSU
Synology DS2422+ DiskStation 12-Bay 3.5" Diskless, AMD Ryzen Quad-core 2.2GHz , 4xGbE NAS (Scalable) ( Expansion Unit - DX1222)
Synology RX1217RP Expansion Unit - 12-Bay 3.5" Diskless NAS (2U Rack), (SMB/ENT) for Scalable NAS Models RS3617 with redundant power supplies
Synology RX1217SAS 12-Bay Expansion Unit - Rackmount 3.5"/2.5" SAS/SATA HDD(12), SAS In-Port(1), SAS Out-Port(1), 500W PSU(2)
Synology Expansion Unit RX1222sas - 12 Bay 3.5" SAS HDD, 2.5" SATA SSD, Hot Swappable, 500W, 54.5 dB(A)
Synology RS3621RPxs RackStation Intel Xeon D-1531, 64-BIT, 8GB DDR4, (6-core 2.2GHz Base, 2.7GHz Turbo), Drive Bays(12), 80mm Fan(4), Hot Swappable, LAN, USB3.2(2), Expansion Slot(2), PCIe, 2U
Synology RS3621XS+ RackStation Intel Xeon D-1531, 64-BIT, 8GB DDR4, (8-core 2.1GHz Base, 2.7GHz Turbo), Drive Bays(12), 80mm Fan(4), Hot Swappable, LAN, USB3.2(2), Expansion Slot(2), PCIe, 2U
Synology RS1619XS+ RackStation 4-Bay 3.5" Diskless 4xGbE (1U Rack),Intel Xeon D-1527 quad core,2.2GHz,8GB DDR4 ,2xUSB3, Expansion port x 1
Synology DiskStation DX1222 12 Bay 3.5" Diskless NAS Expansion Unit
Synology RXD1219SAS Expansion Unit - 12 Drive Bays, Hot Swappable, SASin(2), SASout(2)