Synology RackStation RS4021xs+ 16 Bay 16GB DDR4 Diskless 3U Rackmount NAS with Redundant Power Supply

Synology RackStation RS4021xs+ is a powerful 16-bay 3U storage solution designed for high throughput and data integrity, made with built-in redundant power. Equipped with an 8-core processor and upgradable to 64 GB memory, the RS4021xs+ is capable of hosting demanding services involving virtualization, mail, office collaboration, and surveillance, to meet the unique requirements of enterprise environments.

Accelerated Performance:
Up to 234,698 random read IOPS and 6,258 MB/s sequential read performance

Powerful Compute:
Host multiple compute-intensive services with its 8-core Intel processor

Upgradability:
Two PCIe expansion slots allow for M.2 NVMe cache adapters and high-bandwidth network cards

Redundant Power:
Ensure business continuity with two redundant power supplies

On-demand Scalability:
Supports up to 40 drive bays using two RX1217(RP)

CPU:
• CPU Model: Intel Xeon D-1541
• CPU Quantity: 1
• CPU Architecture: 64-bit
• CPU Frequency: 8-core 2.1 (base) / 2.7 (turbo) GHz
• Hardware Encryption Engine (AES-NI): Yes

Memory:
• System Memory: 16 GB DDR4 ECC UDIMM
• Memory Module Pre-installed: 16 GB (16 GB x 1)
• Total Memory Slots: 4
• Maximum Memory Capacity: 64 GB (16 GB x 4)

Storage:
• Drive Bays: 16
• Maximum Drive Bays with Expansion Unit: 40 (RX1217/RX1217RP x 2)
• Compatible Drive Type: 3.5" SATA HDD, 2.5" SATA SSD
• Hot Swappable Drive: Yes

External Ports:
• RJ-45 1GbE LAN Port: 4 (with Link Aggregation / Failover support)
• RJ-45 10GbE LAN Port: 2 (with Link Aggregation / Failover support)
• USB 3.2 Gen 1 Port: 2
• Expansion Port: 2

PCIe:
• PCIe Expansion: 2 x Gen3 x8 slots (x8 link)

Appearance:
• Form Factor (RU): 3U
• Size (H x W x D): 132.3 x 482 x 656.5 mm
• Weight: 17.4 kg
• Rack Installation Support: 4-post 19" rack (Synology Rail Kit - RKS-02)

Others:
• System Fan: 80 mm x 80 mm x 3 pcs
• Fan Speed Mode: Full-Speed Mode, Cool Mode, Quiet Mode
• Easy Replacement System Fan: Yes
• Power Recovery: Yes
• Noise Level: 44.7 dB(A)
• Scheduled Power On / Off: Yes
• Wake on LAN / WAN: Yes
• Power Supply Unit / Adapter: 800 W, 550 W
• Redundant Power Supply: Yes
• AC Input Power Voltage: 100 V to 240 V AC
• Power Frequency: 50/60 Hz, Single Phase
• Power Consumption: 145.79 W (Access), 62.68 W (HDD Hibernation)
• British Thermal Unit: 497.14 BTU/hr (Access), 213.74 BTU/hr (HDD Hibernation)

Temperature:
• Operating Temperature: 0°C to 35°C (32°F to 95°F)
• Storage Temperature: -20°C to 60°C (-5°F to 140°F)
• Relative Humidity: 5% to 95% RH