BUFFALO TS5420DN3204 – TeraStation 5020 32TB 4-Bay 10GbE Desktop NAS
Overview
The BUFFALO TS5420DN3204 is a TeraStation 5020 Series 4-bay desktop NAS configured with four 8TB NAS-grade CMR hard drives for 32TB of installed storage. It provides one 10GbE RJ-45 interface and two 1GbE RJ-45 interfaces for network storage environments requiring high-speed connectivity alongside standard Gigabit Ethernet.
The system is designed for centralized business file storage, backup, shared network storage, replication, and data protection. All four drive bays are populated in this configuration, while the platform supports multiple RAID levels for different storage and redundancy requirements.
Technical Information
The TS5420DN3204 uses an Annapurna Labs Alpine AL524 processor operating at 2.04GHz with four CPU cores and 8GB of DDR4 memory. Storage is provided through four 8TB NAS-grade CMR HDDs using SATA III 6Gb/s interfaces.
Supported storage configurations include RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD. Buffalo specifies hot-spare capability with hot-swapping supported. The platform also provides snapshots, abnormal file activity detection, remote configuration, replication, failover, Active Directory support, cloud service integration, and iSCSI functionality.
Compatibility
The TS5420DN3204 provides one 10GBASE-T port and two 1000BASE-T ports using RJ-45 connectors. The 10GbE interface supports 10GbE, 5GbE, 2.5GbE, 1GbE, 100MbE, and 10MbE Ethernet operation through the documented IEEE standards.
Supported network file services include CIFS/SMB, AFP, FTP/FTPS/SFTP, and NFS. Compatible Buffalo HDD families include the OP-HDN Series. The system supports Windows 11, Windows 10, Windows 8.1, Windows Server 2019, Windows Server 2016, Windows Server 2012 R2, and macOS 10.13 or later according to the exact-model distributor specification.
Key Features
- 32TB installed capacity using four 8TB NAS-grade CMR HDDs.
- Four-bay desktop chassis with all four bays populated.
- One 10GbE RJ-45 port plus two 1GbE RJ-45 ports.
- AL524 2.04GHz quad-core processor with 8GB DDR4 memory.
- RAID 0/1/5/6/10/JBOD support with hot swapping and hot-spare capability.
Applications
- Centralized business file storage
- Departmental shared network storage
- Backup and data protection infrastructure
- High-speed 10GbE network storage
- NAS-based replication and disaster recovery workflows
DC Supplies Product Note
The TS5420DN3204 is the 32TB four-drive configuration of the TeraStation 5020 TS5420DN platform. It uses four 8TB drives in the four available drive bays, so this exact configuration does not provide an unused internal drive bay for expansion without replacing an installed drive.
Specifications
| Specification | Details |
|---|
| Brand | BUFFALO |
| Part Number / MPN | TS5420DN3204 |
| Product Type | Desktop NAS |
| Series | TeraStation 5020 / TS5420DN |
| Form Factor | Desktop |
| Drive Bays | 4 |
| Included Drives | 4 |
| Drive Configuration | 4 x 8TB |
| Total Capacity | 32TB |
| Drive Type | NAS-grade HDD, CMR |
| Drive Interface | SATA III 6Gb/s |
| Supported RAID | RAID 0/1/5/6/10/JBOD |
| Processor | Annapurna Labs Alpine AL524 |
| Processor Speed | 2.04GHz |
| CPU Cores | 4 |
| Memory | 8GB DDR4 |
| Network Ports | 1 x 10GbE + 2 x 1GbE |
| Network Connector | RJ-45 |
| Ethernet Standards | 10GBASE-T, 5GBASE-T, 2.5GBASE-T, 1000BASE-T, 100BASE-TX, 10BASE-T |
| USB Ports | 2 x USB 3.2 + 2 x USB 2.0 |
| Network File Services | CIFS/SMB, AFP, FTP/FTPS/SFTP, NFS |
| Supported Protocol | TCP/IP |
| Snapshots | Yes |
| Abnormal File Activity Detection | Yes |
| Remote Configuration | Yes |
| Hot Swap / Hot Spare | Yes |
| SSD Caching | No |
| iSCSI | Yes |
| Active Directory | Yes |
| Cloud Service Integration | Yes |
| Power Supply | Internal AC 100–240V, 50/60Hz |
| Maximum Power Consumption | 100W |
| Data Transfer Power Consumption | 72W |
| Idle Power Consumption | 56W |
| Operating Temperature | 0–40°C |
| Operating Humidity | 10–85% non-condensing |
| Dimensions (L x W x H) | 9.06 x 6.69 x 8.46 in |
| Weight | 12.41 lb |
| Warranty | 3 years |
| Country of Origin | Japan |
| TAA Compliant | Yes |
FAQs
How much storage is included with the BUFFALO TS5420DN3204?
The TS5420DN3204 includes four 8TB NAS-grade CMR HDDs, providing 32TB of installed native storage.
How many drive bays does the TS5420DN3204 have?
The system has four drive bays, and all four are populated with 8TB drives in this exact configuration.
Which RAID levels are supported?
The TS5420DN3204 supports RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD.
What network connectivity is available?
The NAS provides one 10GbE RJ-45 port and two 1GbE RJ-45 ports, supporting high-speed and standard Gigabit network connectivity.
Does the TS5420DN3204 support SSD caching?
No. Buffalo specifies that SSD caching is not supported on the TS5420DN platform.
What processor and memory are installed?
The NAS uses an Annapurna Labs Alpine AL524 2.04GHz quad-core processor with 8GB of DDR4 memory.
