BUFFALO TS5820DN6404 – TeraStation 5020 64TB 8-Bay 10GbE NAS
Overview
The BUFFALO TS5820DN6404 is a TeraStation 5020 Series 8-bay desktop NAS configured with 64TB of installed storage using four 16TB NAS-grade CMR hard drives. The chassis provides four additional drive bays for future expansion and supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD.
The TS5820DN6404 is designed for business storage environments requiring centralized network storage, high-capacity disk configurations, and 10GbE connectivity. Its desktop form factor provides eight internal SATA drive bays while retaining two additional Gigabit Ethernet interfaces for network connectivity options.
Technical Information
The system uses an Annapurna Labs Alpine AL524 processor operating at 2.04GHz with four CPU cores and 8GB of DDR4 memory. Storage drives use SATA III 6Gbps interfaces.
Network connectivity consists of one 10GBASE-T RJ-45 port and two 1000BASE-T RJ-45 ports. The 10GbE interface supports high-speed network environments, while the two Gigabit Ethernet ports provide connectivity to conventional 1GbE infrastructure.
The TS5820DN platform supports CIFS/SMB, AFP, FTP, SFTP, NFS, and SNMP services. Two USB 3.2 ports and two USB 2.0 ports provide Type-A peripheral connectivity. Buffalo also specifies hot swapping and hot-spare support for the platform.
The TS5820DN series uses RAID 6 as its default RAID mode. With four 16TB drives, RAID 6 provides approximately 32TB of raw usable array capacity before filesystem and system overhead.
Compatibility
The TS5820DN6404 is intended for standard Ethernet-based NAS environments and supports 10GBASE-T and 1000BASE-T networking. The system can be deployed with compatible Windows and macOS client systems and supports Windows Server environments listed by Buffalo for the TeraStation 5020 platform.
Supported RAID modes include RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD. The eight-bay chassis allows additional compatible drives to be installed, subject to the selected RAID configuration and Buffalo compatibility requirements.
Buffalo lists the OP-HD16.0N as a compatible 16TB replacement drive for the TS5820DN6404. The replacement drive uses a SATA 6Gbps interface and carries a standard three-year warranty.
Key Features
- 64TB installed capacity using four 16TB NAS-grade CMR hard drives
- Eight-bay desktop chassis with four populated and four available drive bays
- One 10GBASE-T port plus two 1000BASE-T RJ-45 ports
- Annapurna Labs AL524 2.04GHz quad-core processor with 8GB DDR4 memory
- RAID 0/1/5/6/10 and JBOD support with hot-swap and hot-spare capability
Applications
- Business file and shared network storage
- Centralized office and departmental data storage
- High-capacity backup and data-protection deployments
- 10GbE storage environments
- Expandable desktop NAS installations requiring additional drive bays
DC Supplies Product Note
The TS5820DN6404 uses four of its eight drive bays for the supplied 64TB configuration, leaving four bays available for expansion. Its default RAID 6 configuration is suited to deployments prioritizing dual-drive fault tolerance, although usable capacity is lower than the 64TB raw drive total.
Specifications
| Specification | Details |
|---|
| Brand | BUFFALO |
| Part Number / MPN | TS5820DN6404 |
| Product Type | Desktop NAS |
| Series | TeraStation 5020 |
| Form Factor | 8-Bay Desktop |
| Drive Bays | 8 |
| Included Drives | 4 × 16TB |
| Total Installed Capacity | 64TB |
| Available Drive Bays | 4 |
| Drive Type | NAS-Grade HDD, CMR |
| Drive Interface | SATA III 6Gbps |
| Default RAID Mode | RAID 6 |
| Supported RAID | RAID 0 / 1 / 5 / 6 / 10 / JBOD |
| Processor | Annapurna Labs Alpine AL524, 2.04GHz Quad-Core |
| Memory | 8GB DDR4 |
| 10GbE Network | 1 × 10GBASE-T RJ-45 |
| Gigabit Network | 2 × 1000BASE-T RJ-45 |
| Network Services | CIFS/SMB, AFP, FTP, SFTP, NFS, SNMP |
| USB Ports | 2 × USB 3.2, 2 × USB 2.0 |
| USB Connector | Type-A |
| Hot Swap | Supported |
| Hot Spare | Supported |
| Maximum Power Consumption | 150W |
| Data Transfer Power Consumption | 112W |
| Idle Power Consumption | 97W |
| Power Supply | Internal AC 100–240V, 50/60Hz |
| Operating Temperature | 0–40°C |
| Operating Humidity | 10–85% non-condensing |
| Dimensions | 9.06 × 11.81 × 8.46 in |
| Weight | 23.72–26.91 lb |
| Country of Origin | Japan |
| TAA Compliant | Yes |
| Warranty | 3 years |
FAQs
How much storage does the TS5820DN6404 provide?
The TS5820DN6404 includes four 16TB drives for 64TB of total installed raw capacity.
How many drive bays are available?
The chassis has eight drive bays. Four are populated in the 64TB configuration, leaving four bays available for compatible additional drives.
What RAID levels are supported?
The TS5820DN6404 supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD. RAID 6 is the default RAID mode for the TS5820DN platform.
What network ports are included?
The NAS provides one 10GBASE-T RJ-45 port and two 1000BASE-T RJ-45 ports.
What processor and memory are installed?
The system uses an Annapurna Labs Alpine AL524 2.04GHz quad-core processor and 8GB of DDR4 memory.
Can drives be replaced without shutting down the NAS?
Yes. Buffalo specifies hot-swapping support for the TS5820DN platform, along with hot-spare capability.
