Synology RackStation RS3621xs+
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Support for virtual machines in Synology Virtual Machine Manager. Two Infiniband expansion slots.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Synology 2026 - new arrivals, bestsellers, and the most relevant models Synology.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Synology 2026 - new arrivals, bestsellers, and the most relevant models Synology.
Series Synology RackStation (rack)Compare using chart →
rack, without drive, connection: 3.5" 8, LAN: 4 ports, 1 Gbps, CPU: AMD RyzenTM V1500B, 4 cores (8 threads), 2.2 GHz, mail server
rack, without drive, connection: 3.5" 8, LAN: 4 ports, 1 Gbps, CPU: AMD RyzenTM V1500B, 4 cores (8 threads), 2.2 GHz, mail server
rack, without drive, connection: 3.5" 4, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Atom C3538, 4 cores (4 threads), 2.1 GHz, mail server
rack, without drive, connection: 3.5" 12, PCIe 2 pcs, LAN: 4 ports, 1 Gbps, 10 Gbps, CPU: Intel Xeon D-1541, 8 cores (16 threads), 2.1 GHz, TurboBoost 2.7 GHz, mail server
rack, without drive, connection: 3.5" 12, PCIe 2 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Xeon D-1541, 8 cores (16 threads), 2.1 GHz, TurboBoost 2.7 GHz, mail server
rack, without drive, connection: 3.5" 4, LAN: 2 ports, 1 Gbps, CPU: 1.67 GHz, mail server
rack, without drive, connection: 3.5" 16, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server
rack, without drive, connection: 3.5" 12, LAN: 4 ports, 1 Gbps, CPU: Intel Xeon E3-1230 v2, mail server
without drive, connection: 3.5" 16, LAN: 1 port, 100 Mbps, CPU: Intel Xeon D-1541, 8 cores (16 threads), 2.1 GHz, TurboBoost 2.7 GHz, mail server
rack, without drive, connection: 3.5" 16, PCIe 2 pcs, LAN: 1 Gbps, 10 Gbps, CPU: Intel Xeon D-1541, 8 cores (16 threads), 2.1 GHz, TurboBoost 2.7 GHz, transcoding, mail server
rack, without drive, connection: 3.5" 4, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server, card reader
rack, without drive, connection: 3.5" 16, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Atom C3538, 4 cores (4 threads), 2.1 GHz, transcoding, mail server
rack, without drive, connection: 3.5" 4, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: AMD Ryzen V1500B, 4 cores (8 threads), 2.2 GHz, mail server, card reader
rack, without drive, connection: 3.5" 12, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Atom C3538, 4 cores (4 threads), 2.1 GHz, transcoding, mail server
rack, without drive, connection: 3.5" 12, PCIe 1 pcs, LAN: 1 Gbps, 10 Gbps, CPU: AMD Ryzen V1780B, 4 cores (8 threads), 3.35 GHz, TurboBoost 3.6 GHz, mail server
rack, without drive, connection: 3.5" 12, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Atom C3538, 4 cores (4 threads), 2.1 GHz, mail server
rack, without drive, connection: 3.5" 12, PCIe 1 pcs, LAN: 1 Gbps, 10 Gbps, CPU: AMD Ryzen V1780B, 4 cores (8 threads), 3.35 GHz, TurboBoost 3.6 GHz, mail server
rack, without drive, connection: 3.5" 12, PCIe 2 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Xeon D-1521, 4 cores (8 threads), 2.4 GHz, TurboBoost 2.7 GHz, transcoding, mail server
rack, without drive, connection: 3.5" 16, PCIe 1 pcs, LAN: 1 Gbps, 10 Gbps, CPU: AMD Ryzen V1780B, 4 cores (8 threads), 3.35 GHz, TurboBoost 3.6 GHz, mail server
rack, without drive, connection: 3.5" 8, PCIe 1 pcs, LAN: 4 ports, 1 Gbps, CPU: Intel Atom C2538, 4 cores (4 threads), 2.4 GHz, transcoding, mail server
Video reviews
The Synology RS3621XS+ is a Great System, But One Thing About The Drives...
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We recommendCompare using chart →
rack, without drive, connection: 3.5" 8, LAN: 4 ports, 1 Gbps, CPU: AMD RyzenTM V1500B, 4 cores (8 threads), 2.2 GHz, mail server
without drive, connection: 3.5" 4, PCIe 2 pcs, LAN: 2 ports, 2.5 Gbps, CPU: AMD Ryzen Embedded V1500B, 4 cores (8 threads), 2.2 GHz, USB-C
rack, without drive, connection: 3.5" 4, M.2 2, LAN: 2 ports, 2.5 Gbps, CPU: Marvell OCTEON TX2 CN9130 / CN9131 (ARM), 4 cores (4 threads), 2.2 GHz, mail server, SFP+
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: Marvell ARMADA 385, Chromecast
without drive, connection: 3.5" 6, PCIe 1 pcs, LAN: 2 ports, 2.5 Gbps, CPU: Alpine AL524, 4 cores (4 threads), 2 GHz, mail server, SFP+
without drive, connection: 3.5" 1, LAN: 1 port, 1 Gbps, CPU: ARM Cortex-A55, 4 cores (4 threads), 1.8 GHz, mail server
without drive, connection: 3.5" 2, LAN: 1 port, 1 Gbps, CPU: ARM Cortex-A55, 4 cores (4 threads), 1.8 GHz
without drive, connection: 3.5" 2, M.2 2, LAN: 1 port, 2.5 Gbps, CPU: Intel N100, 4 cores (4 threads), TurboBoost 3.4 GHz, HDMI, USB-C
without drive, connection: 3.5" 5, 2.5" 4, LAN: 2 ports, 2.5 Gbps, CPU: AnnapurnaLabs Alpine AL324, 4 cores (4 threads), 1.7 GHz, mail server, SFP+, Chromecast