BUFFALO TS5420RN1604 – TeraStation 5420RN 16TB 4-Bay 1U Rackmount NAS
Overview
The BUFFALO TS5420RN1604 is a 4-bay, 1U rackmount NAS in the TeraStation 5420RN series, configured with four 4TB NAS-dedicated hard drives for 16TB of raw installed capacity. It is designed for business network storage deployments requiring rackmount form factor, 10GbE connectivity, software RAID, snapshots, and centralized file and block storage capabilities.
Technical Information
The system uses an Annapurna Labs Alpine AL524 quad-core 64-bit processor operating at 2.0GHz and 8GB of DDR4 ECC memory. Storage is provided through four 3.5-inch SATA III drive bays, with RAID 6 configured as the factory default. Supported RAID modes are RAID 6, 5, 10, 1, 0, and JBOD.
Network connectivity includes one 10GBASE-T RJ-45 port and two 1000BASE-T RJ-45 ports. The 10GbE interface supports 10Gbps, 5Gbps, 2.5Gbps, 1Gbps, 100Mbps, and 10Mbps operation, while the Gigabit interfaces support 1000Mbps, 100Mbps, and 10Mbps.
The TS5420RN1604 supports SMB/CIFS, AFP, FTP, SFTP, NFS, HTTP/HTTPS, SNMP, iSCSI, and rsync. Storage management functions include snapshots, copy-on-write, metadata duplication, iSCSI volume backup, replication, failover, scheduled backup, and abnormal file-operation detection.
Compatibility
The TS5420RN1604 is intended for Ethernet-based NAS and iSCSI environments using standard RJ-45 network infrastructure. Its 10GbE interface can connect to compatible 10GbE switches and network equipment while the two 1000BASE-T ports provide conventional Gigabit Ethernet connectivity.
The four internal bays use 3.5-inch NAS-dedicated HDDs and support SATA III storage interfaces. The unit uses software RAID and does not provide a redundant power supply; the official specification lists a single AC100V 50/60Hz power input.
Key Features
- 16TB total installed capacity using four 4TB NAS-grade HDDs
- 4-bay 1U rackmount chassis with software RAID
- 1× 10GBASE-T and 2× 1000BASE-T RJ-45 network interfaces
- 8GB DDR4 ECC memory with Annapurna Labs AL524 quad-core processor
- Snapshots, iSCSI, replication, failover, copy-on-write, and metadata duplication
Applications
- Business file and network storage
- Rackmount NAS deployments in server rooms and data centers
- 10GbE storage networks requiring higher network bandwidth
- Centralized SMB/CIFS and NFS file services
- iSCSI-based storage and backup environments
DC Supplies Product Note
The TS5420RN1604 is supplied with four 4TB drives and is factory configured for RAID 6, providing 8TB of effective RAID 6 capacity according to Buffalo's exact-model RAID table. This configuration is suited to deployments where four-drive redundancy and a compact 1U rack footprint are more important than maximum usable capacity.
Specifications
| Specification | Details |
|---|
| Brand | BUFFALO |
| Part Number / MPN | TS5420RN1604 |
| Product Type | Rackmount NAS |
| Series | TeraStation 5420RN |
| Form Factor | 1U Rackmount |
| Total Capacity | 16TB |
| Included Drives | 4 × 4TB NAS-dedicated HDD |
| Drive Bays | 4 × 3.5-inch |
| Drive Interface | Serial ATA III, up to 6Gbps |
| Default RAID | RAID 6 |
| Supported RAID | RAID 6, 5, 10, 1, 0, JBOD |
| RAID 6 Effective Capacity | 8TB |
| CPU | Annapurna Labs Alpine AL524, 2.0GHz, Quad-Core 64-bit |
| Memory | 8GB DDR4 ECC |
| 10GbE | 1 × 10GBASE-T RJ-45 |
| Gigabit Ethernet | 2 × 1000BASE-T RJ-45 |
| USB | 3 × USB 3.2 Gen 1 Type-A |
| Network Protocols | SMB/CIFS, AFP, FTP, SFTP, NFS, HTTP/HTTPS, SNMP, iSCSI, rsync |
| Snapshots | Supported |
| Power Consumption | Maximum 100W; Data Transfer 75W; Idle 63W |
| Operating Temperature | 0–40°C |
| Operating Humidity | 10–85% non-condensing |
| Dimensions | 430 × 44.3 × 430mm (W × H × D) |
| Weight | Approximately 8.4kg |
| Country of Origin | Japan |
FAQs
What is the capacity of the BUFFALO TS5420RN1604?
The TS5420RN1604 has 16TB of total installed storage using four 4TB NAS-dedicated HDDs.
What RAID mode is configured by default?
Buffalo specifies RAID 6 as the factory default. The exact-model RAID table lists 8TB of effective capacity in RAID 6.
Does the TS5420RN1604 support 10GbE?
Yes. It provides one 10GBASE-T RJ-45 port in addition to two 1000BASE-T RJ-45 ports.
How much memory does the TS5420RN1604 have?
The system has 8GB of DDR4 ECC memory.
Does the TS5420RN1604 support iSCSI?
Yes. iSCSI is supported along with network file protocols including SMB/CIFS, AFP, FTP, SFTP, and NFS.
