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Silver 12-bay rackmount NAS with front drive trays and handle

Buffalo Technology

Buffalo Technology TS51220RH6404 12-Bay 64TB rackmount NAS

SKU CH-ZQX2-MHT7S MPN TS51220RH6404

A 12-bay rackmount NAS with 64 TB of pre-installed enterprise drives, 16 GB DDR4 memory and native 10 GbE for high-speed business storage

  • StandardsIEEE802.3an (10GBASE-T), IEEE802.3bz (5GBASE-T/2.5GBASE-T),
  • Port RJ-452x USB 3.2, 2x USB 2.0
  • Port USBSATA III (6 Gbps)
  • Form Factor12-Bay
  • Operating SystemWindows® 11, Windows® 10, Windows® 8.1 (32-bit/64-bit), Wind
  • Installed Memory16GB DDR4

Included HDD Capacity 64TB (4 x 16TB)

Option Partially Populated

  • Ready-to-use storage with 64TB pre-installed and RAID pre-configured
  • Fast file transfers via native 10GbE port with multi-gigabit fallback
  • Secure data protection through AES-256 encryption and two-factor authentication
  • Simplified administration with centralised remote management console
  • Broad compatibility across Windows, Windows Server and Mac environments

12-Bay Rackmount NAS with 64TB

The Buffalo TeraStation 51220 is a 12-bay rackmount network-attached storage unit pre-populated with four 16TB enterprise-grade hard drives for 64TB raw capacity. It runs on 16GB DDR4 memory and includes a native 10GbE port alongside multi-gigabit Ethernet standards. The system arrives RAID pre-configured and supports RAID 0, 1, 5, 6, 10, and JBOD modes for flexible data protection.

Suits businesses needing high-capacity.

This unit fits organisations that want a pre-tested, virtualization-certified appliance compatible with Windows Server 2022, VMware, and major cloud targets such as Amazon S3 and Azure. It is not for buyers who need more than twelve drive bays, require a different drive interface than SATA, or operate outside the 0°C to 40°C temperature range.

Native 10GbE port for high-speed transfers

The single specification that decides fit is the onboard 10GBASE-T port, which delivers ten-gigabit Ethernet over standard copper cabling without requiring fibre upgrades. If your network infrastructure stops at 1GbE, the extra throughput will remain unused; if you already run 10GbE or 2.5/5GbE switches, the NAS can saturate those links for large-file workloads and backup windows.

Highlights

  • Ready-to-use storage with 64TB pre-installed and RAID pre-configured
  • Fast file transfers via native 10GbE port with multi-gigabit fallback
  • Secure data protection through AES-256 encryption and two-factor authentication
  • Simplified administration with centralised remote management console
  • Broad compatibility across Windows, Windows Server and Mac environments

Specifications

BrandBUFFALO
ModelTS51220RH6404
StandardsIEEE802.3an (10GBASE-T), IEEE802.3bz (5GBASE-T/2.5GBASE-T), IEEE802.3ab (1000BASE-T), IEEE802.3u (100BASE-TX), IEEE802.3 (10BASE-T)
Port RJ-452x USB 3.2, 2x USB 2.0
Port USBSATA III (6 Gbps)
Form Factor12-Bay
Operating SystemWindows® 11, Windows® 10, Windows® 8.1 (32-bit/64-bit), Windows® 7 (32-bit/64-bit), Windows Server® 2022, Windows Server® 2019, Windows
Server® 2016, Windows Server® 2012, Windows Server® 2012R2, Mac® OS® X 10.9 or later
Installed Memory16GB DDR4
Included HDD Capacity64TB (4 x 16TB)
RAIDRAID 0, 1, 5, 6, 10, and JBOD
Supported ProtocolsTCP/IP
PowerMax 500W
Temperature32° - 104°F (0° - 40°C)
Humidity10 - 85% non-condensing
Dimensions29.0'' x 18.9'' x 3.4''
Weight41.03 - 55.37 lbs
Package ContentsIncluded Material : TeraStation, Quick Setup Guide, AC Cable, Front Panel Key, and Warranty Statement
Included Software : NASNavigator2, NovaBACKUP® Buffalo Edition (One server and ten workstation licenses - available for download after product registration)
Additional : For compliance documents such as RoHS Declaration, Certificate of Volatility, Certificate of Conformance, or others please contact [email protected] .
Shipping weight29.48 kg
Package size1067 × 648 × 305 mm

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Questions about this item

Should I pick the 64TB version or add more drives to the empty bays?

The unit ships with four 16TB drives for 64TB raw capacity. Eight bays remain free so you can expand later without buying a second appliance.

What does the 10GbE port deliver in daily file transfers?

The native 10GBASE-T port supports up to 10Gbps over standard Cat6a cabling, so large project folders move at near line speed without extra adapters.

Which network standards does the RJ-45 port actually support?

It negotiates 10GBASE-T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, 100BASE-TX and 10BASE-T automatically, capping at the highest speed both ends share.

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