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Silver 12-bay rackmount NAS unit with front drive trays and status LEDs

Buffalo Technology

Buffalo Technology TS51220RH3204 12-Bay 32TB rackmount NAS

SKU CH-YVYN-5P53C MPN TS51220RH3204

A 12-bay rackmount NAS with 32 TB of pre-installed enterprise drives, quad-core processor and dual 10 GbE ports

  • CPUAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
  • Form factor12-Bay
  • Power draw140.01 W
  • Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
  • LAN ports2 × 10GbE + 2 × 1GbE
  • USB ports2 x USB3.0 + 2 x USB2.0

Included HDD Capacity 32TB (4 x 8TB)

Model Partially Populated

  • Enterprise-grade drives pre-installed and RAID-ready for immediate deployment
  • Dual 10GbE ports deliver high-speed file transfers without cable upgrades
  • Quad-core 2.04 GHz processor with 16GB DDR4 handles demanding workloads
  • 12-bay chassis supports RAID 0, 1, 5, 6, 10 and JBOD for flexible data protection
  • VMware and Windows Server 2022 certified for virtualization environments

12-Bay 32TB rackmount NAS with pre-configured RAID

The Buffalo Technology TS51220RH3204 is a 12-bay rackmount network-attached storage device that ships with four 8TB enterprise-grade hard drives pre-installed and RAID pre-configured. It targets businesses that need high read-write performance and immediate deployment without manual drive installation or array setup. The unit includes 16GB of DDR4 memory and an Annapurna Labs Alpine AL524 quad-core processor running at 2.04 GHz.

Dual 10GbE and dual 1GbE ports define network

Network connectivity is limited to two 10GbE RJ-45 ports and two 1GbE RJ-45 ports, supporting IEEE 802.3, 802.3u and 802.3ab standards. No additional network interfaces or higher-speed ports are present, so aggregate bandwidth tops out at the combined capability of these four links. USB expansion is restricted to two USB 3.0 and two USB 2.0 ports for external storage or backup targets.

Eight empty SATA bays limit raw capacity expansion

The chassis provides twelve SATA drive bays but only four are populated with the included 8TB drives, leaving eight bays available for future growth. Maximum raw capacity depends entirely on the drive model specified in the compatibility list (OP-HD8.0H2U-5Y) and the chosen RAID level. Buyers who need more than the factory 32TB must source additional approved drives separately.

How it compares

Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.

Price $3,518.99
Cheaper than about 82% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameBUFFALO
Model nameTS51220RH3204
Part numberTS51220RH3204
Recommended useHigh read/write performance with RAID
Processor
CPUAnnapurna Labs Alpine Processor AL524 (2.04 GHz Quad-Core)
Memory
Installed RAM16 GB DDR4
Storage
Drive interface12 x SATA (12 x Bay)
Drives included32 TB (4 × 8 TB)
Supported RAID modes0, 1, 5, 6, 10, and JBOD
Connectivity
Supported standardsIEEE 802.3, IEEE 802.3u, IEEE 802.3ab
Protocol supportTCP/IP
Ports & slots
LAN ports2 × 10GbE + 2 × 1GbE
USB ports2 x USB3.0 + 2 x USB2.0
Power
Power draw140.01 W
Power details100-240 VAC 50/60 Hz
Size & build
Form factor12-Bay
Product dimensions29.0 × 18.9 × 3.4 in
Product weight55.37 lb (25.1 kg)
Shipping weight29.48 kg
Package size1067 × 610 × 330 mm
Compatibility
Compatible drivesOP-HD8.0H2U-5Y
In the box
In the boxTeraStation, Quick Setup Guide, AC Cable, and Warranty Statement
Environment & compliance
Temperature range0 °C - 40 °C
Humidity range10-80% Non-condensing
More details
Indicator lightsPower, HDD (Hard Disk Drive), LAN (10/100)

Other versions of this model

5 more in the same range

Questions about this item

How many drive bays are populated out of the 12 available?

Four bays come filled with 8 TB enterprise drives giving 32 TB usable capacity; the remaining eight bays are empty for future expansion.

What real-world throughput can I expect from the dual 10 GbE ports?

The 10 GbE links can move data at up to 10 Gbps each, so large sequential transfers will saturate a 10 GbE network path while the quad-core AL524 processor and 16 GB DDR4 handle RAID overhead.

Which IEEE Ethernet standards do the RJ-45 ports comply with?

The two 10 GbE and two 1 GbE ports meet IEEE 802.3, 802.3u and 802.3ab, so they negotiate 10 Gbps, 1 Gbps, 100 Mbps or 10 Mbps automatically over standard copper cabling.

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