Buffalo TS51220RH SAN/NAS Storage System

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1 availableas of 07/27/2026

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Compliance, certifications and origin

  • TAA compliant
  • Origin: Japan
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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

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Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

About the Buffalo TeraStation 5020 TS51220RH

PERFORMANCE, SECURITY, and SCALABILITY

The TeraStation 5020 is Buffalo's mid-size enterprise network attached storage (NAS) designed as a secure storage solution optimized for high workloads. Available in desktop and rackmount form factors, the TS5020 comes with high capacities in partial- or fully-populated models with NAS-grade hard drives included (enterprise-grade for TS51220RH models), allowing you to fulfill your data needs now while leaving the option to expand later.

The TS5020 is an evolution of Buffalo's acclaimed TeraStation 5010 and 6000 Series devices, delivering improved hardware and firmware with advanced productivity and security features. Updated CPU and RAM offer smoother operations and reduced backup times, even with high-load environments, and full compatibility with VMware and Hyper-V allows the TS5020 to be set as an iSCSI backup target so you can fully leverage virtualization to enhance your performance and security. TS5020 supports remote configuration through Buffalo's Remote Management Service to enable detailed system changes from anywhere. As of firmware version 1.68, TS51220RH models also support NVMe caching for additional performance enhancement to take on IOPS-heavy operations.

TS5020 runs on a closed system to mitigate cyberthreats such as ransomware. Other security features also include two-factor authentication (2FA), drive encryption, and Buffalo's Abnormal Login and File Activity Detection feature to help you stay one step ahead of ransomware. In addition, the TS5020 includes the acclaimed snapshots feature from our TS6000 devices-a true game changer that backs up and recover data near-instantaneously, without having to undergo cumbersome backup recovery processes.

More from the manufacturer

Technical specifications

Technical Specifications of the Buffalo TeraStation 5020 TS51220RH

General Information

General Information specifications
Manufacturer Buffalo Americas, Inc
Manufacturer Part Number TS51220RH12012
Manufacturer Website Address http://www.buffalotech.com
Brand Name Buffalo
Product Line TeraStation
Product Series 5020
Product Model TS51220RH
Product Name TS51220RH SAN/NAS Storage System
Product Type SAN/NAS Storage System

Storage

Storage specifications
Number of Hard Drives Supported 12
Number of Hard Drives Installed 12
Total Hard Drive Capacity Installed 120 TB
Hard Drive Interface Serial ATA/600
Hard Drive Configuration 12 x 10TB

Processor & Chipset

Processor & Chipset specifications
Processor Manufacturer Annapurna Labs
Processor Type Alpine
Processor Model AL524
Processor Core Quad-core (4 Core)
Processor Speed 2.04 GHz

Memory

Memory specifications
Standard Memory 16 GB
Memory Technology DDR4 SDRAM

Network & Communication

Network & Communication specifications
Ethernet Technology 10 Gigabit EthernetGigabit Ethernet

I/O Expansions

I/O Expansions specifications
Number of Total Expansion Bays 12

Controllers

Controllers specifications
Controller Type Serial ATA/600
RAID Supported Yes
RAID Levels 0, 1, 5, 6, 10, JBOD

Interfaces/Ports

Interfaces/Ports specifications
Drive Interface Serial ATA/600
Total Number of USB Ports 4
Number of USB 2.0 Ports 2
Network (RJ-45) Yes
Number of Network (RJ-45) Ports 4

Management & Protocols

Management & Protocols specifications
Protocols CIFS/SMBAFPFTPFTPSSFTPNFSTCP/IPiSCSI

Physical Characteristics

Physical Characteristics specifications
Height 3.4"
Width 18.9"
Depth 29"
Form Factor Rack-mountable
Weight (Approximate) 55.37 lb

Miscellaneous

Miscellaneous specifications
Compatibility Windows® 11 (32-bit/64-bit), Windows® 10, Windows® 8.1 (32-bit/64-bit), Windows Server® 2022, Windows Server® 2019, Mac® OS® X 10.13 or later
Country of Origin Japan
TAA Compliant Yes

Warranty

Warranty specifications
Limited Warranty 5 Year
Additional Warranty Information

Comes with standard 3-year warranty. TS51220RH features standard 5-year warranty when registered within 90 days of purchase.

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Accessories

Buffalo Replacement Power Supply

MFG Part # OP-PU-10R2UWRPart # 1-1445003UPC # 747464133119

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Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.