BUFFALO TS51220RH4812 – TeraStation 51220RH 48TB 12-Bay 2U 10GbE Enterprise NAS
Overview
The BUFFALO TS51220RH4812 is a 48TB TeraStation 51220RH enterprise NAS with twelve 4TB nearline enterprise-grade hard drives installed in a 12-bay, 2U rackmount chassis. It is designed for centralized business storage, backup, server storage, and other rack-based environments requiring high-capacity network storage.
The factory RAID 6 configuration provides 40TB of specified effective capacity from the 48TB installed drive capacity. The platform also supports RAID 0, RAID 1, RAID 5, RAID 10, and JBOD configurations.
Technical Information
The TS51220RH4812 uses an Annapurna Labs Alpine V2 AL524 2.0GHz quad-core processor and 16GB of DDR4 ECC memory. Network connectivity consists of two 10GBASE-T ports and two 1000BASE-T ports, providing multiple high-speed Ethernet interfaces for enterprise network deployment.
The system supports iSCSI targets, iSCSI volume backup, snapshots, copy-on-write, metadata duplication, replication, and SSD caching through supported optional hardware. RAID acceleration and rapid RAID switching are also supported features of the TS51220RH platform.
Compatibility
The TS51220RH4812 uses 3.5-inch enterprise-grade nearline HDDs with SATA 6Gbps interfaces. BUFFALO specifies the OP-HD4.0H2U-5Y as a compatible replacement enterprise hard drive for this exact model.
Network services include TCP/IP, CIFS/SMB, AFP, FTP/FTPS/SFTP, and NFS. The dual 10GBASE-T interfaces support high-speed network connectivity, while the two 1000BASE-T ports provide additional Gigabit Ethernet connectivity. IEEE 802.3ad Link Aggregation is supported.
Key Features
- 48TB installed capacity with twelve 4TB enterprise-grade HDDs
- 12-bay 2U rackmount chassis with enterprise HDDs
- Dual 10GBASE-T and dual 1000BASE-T network interfaces
- Factory RAID 6 with RAID 0, 1, 5, 6, 10, and JBOD support
- 2.0GHz quad-core AL524 processor with 16GB DDR4 ECC memory
Applications
- Enterprise network-attached storage
- Centralized file storage and business data management
- Network backup and data protection
- Server storage through iSCSI
- High-capacity rackmount storage for data-center environments
DC Supplies Product Note
The TS51220RH4812 is a fully populated 12-bay configuration with twelve 4TB enterprise-grade HDDs. Its factory RAID 6 arrangement provides 40TB of specified effective capacity while protecting against drive failure within the supported RAID configuration.
Specifications
| Specification | Details |
|---|
| Brand | BUFFALO |
| Part Number / MPN | TS51220RH4812 |
| Product Type | Enterprise Rackmount NAS |
| Series | TeraStation 51220RH / TeraStation 5020 |
| Form Factor | 2U Rackmount |
| Installed Capacity | 48TB |
| Included Drives | 12 × 4TB |
| Drive Bays | 12 |
| Drive Size | 3.5-inch |
| Drive Type | Enterprise-grade Nearline HDD, CMR |
| Drive Interface | SATA 6Gbps |
| Factory RAID | RAID 6 |
| Supported RAID | RAID 0, 1, 5, 6, 10, JBOD |
| RAID 6 Effective Capacity | 40TB |
| RAID 5 Effective Capacity | 44TB |
| RAID 10 Effective Capacity | 24TB |
| RAID 1 Effective Capacity | 4TB |
| RAID 0 Effective Capacity | 48TB |
| Hot Swap | Supported |
| Hot Spare | Supported |
| Processor | Annapurna Labs Alpine V2 AL524, 2.0GHz Quad-Core |
| Memory | 16GB DDR4 ECC |
| 10GbE Network Ports | 2 × 10GBASE-T RJ-45 |
| 1GbE Network Ports | 2 × 1000BASE-T RJ-45 |
| Network Feature | IEEE 802.3ad Link Aggregation |
| USB Ports | 2 × USB 3.2 Gen 1, 2 × USB 2.0 |
| Network File Services | CIFS/SMB, AFP, FTP/FTPS/SFTP, NFS |
| iSCSI | Supported |
| Snapshots | Supported |
| SSD Caching | Supported with optional compatible hardware |
| Maximum Power Consumption | 500W |
| Data Transfer Power | 177W |
| Idle Power | 135W |
| Power Supply | Internal AC 100–240V, 50/60Hz |
| Redundant Power Supply | Optional dual power supply available |
| Operating Temperature | 0–40°C |
| Operating Humidity | 10–85% non-condensing |
| Dimensions | 481 × 88 × 736.9mm (W × H × D) |
| Weight | Approximately 25kg |
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Warranty | 3-year standard warranty; 5-year warranty with product registration for TS51220RH models in applicable North American terms |
| Compatible Replacement Drive | OP-HD4.0H2U-5Y |
FAQs
How much storage is included with the TS51220RH4812?
The TS51220RH4812 includes twelve 4TB enterprise-grade hard drives for 48TB of installed raw storage capacity.
What is the factory RAID configuration?
The TS51220RH4812 ships with RAID 6 configured. With twelve 4TB drives, the specified RAID 6 effective capacity is 40TB.
Which RAID levels are supported?
The system supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD.
What network interfaces are available?
The NAS provides two 10GBASE-T RJ-45 ports and two 1000BASE-T RJ-45 ports. IEEE 802.3ad Link Aggregation is supported.
Does the TS51220RH4812 support iSCSI?
Yes. The TS51220RH4812 supports iSCSI targets and iSCSI volume backup for compatible server and storage deployments.
Which replacement drive is compatible with this model?
BUFFALO specifies the OP-HD4.0H2U-5Y 4TB enterprise replacement drive for the TS51220RH4812.
