BUFFALO LS220D0402 – LinkStation 220 4TB 2-Bay RAID NAS
Overview
The BUFFALO LS220D0402 is a 4TB LinkStation 220 network-attached storage system with two internal drive bays. The installed storage configuration uses two 2TB hard drives and supports RAID 0, RAID 1, and JBOD for different capacity and data-protection requirements.
The system provides one Gigabit Ethernet RJ-45 interface for network connectivity and supports SMB/CIFS, AFP, FTP/FTPS, and TCP/IP services. A USB 2.0 Type-A port provides connectivity for compatible USB peripherals.
Technical Information
The LS220D0402 uses a Marvell Armada 370 processor operating at 800MHz with a dual-issue ARM architecture and 256MB of DDR3 memory. The two internal drives use SATA 3Gbps interfaces.
RAID 0 combines the installed drives into a striped storage configuration, while RAID 1 mirrors data across the two drives for redundancy. JBOD allows the installed drives to be managed without RAID striping or mirroring.
Compatibility
The LS220D0402 is designed for standard TCP/IP Ethernet networks and connects through its single RJ-45 Gigabit Ethernet port. Its network file services support SMB/CIFS, AFP, and FTP/FTPS access from compatible client systems.
The USB interface is USB 2.0 with a maximum specification data rate of 480Mbps. Actual transfer performance depends on the connected device and system configuration.
Key Features
- 4TB total installed capacity using two 2TB hard drives
- 2-bay architecture with RAID 0, RAID 1, and JBOD support
- Gigabit Ethernet with 10/100/1000Mbps auto-sensing
- Marvell Armada 370 800MHz dual-issue ARM processor
- 256MB DDR3 memory and one USB 2.0 port
Applications
- Centralized file storage for small network environments
- Shared document and media storage over Gigabit Ethernet
- RAID 1 mirrored storage where drive redundancy is required
- Network-based backup and shared storage applications
- USB peripheral connectivity for supported storage workflows
DC Supplies Product Note
The LS220D0402 is the original 4TB LS220D-series configuration and should not be confused with later LS220D0402B, LS220D0402C, or LS220D0402G variants. Verify the exact suffix when sourcing replacement units or compatible accessories.
Specifications
| Specification | Details |
|---|
| Brand | BUFFALO |
| Part Number / MPN | LS220D0402 |
| Product Type | 2-Bay Network Attached Storage |
| Series | LinkStation 220 |
| Total Installed Capacity | 4TB |
| Installed Drives | 2 × 2TB |
| Drive Bays | 2 |
| Drive Interface | SATA 3Gbps |
| Supported RAID Levels | RAID 0, RAID 1, JBOD |
| Processor | Marvell Armada 370, 800MHz dual-issue ARM |
| Memory | 256MB DDR3 |
| Network Interface | 1 × RJ-45 Gigabit Ethernet |
| Network Speeds | 10/100/1000Mbps auto-sensing |
| Network Protocol | TCP/IP |
| Network File Services | SMB/CIFS, AFP, FTP/FTPS |
| USB Interface | 1 × USB 2.0 |
| USB Maximum Data Rate | 480Mbps |
| Maximum Power Consumption | 48W |
| Power Supply | AC 100–240V, 50/60Hz |
| Operating Temperature | 5–35°C |
| Operating Humidity | 20–80% non-condensing |
| Dimensions | 8.1 × 3.4 × 5in |
| Weight | 5.5lb |
FAQs
What is the capacity of the BUFFALO LS220D0402?
The LS220D0402 has 4TB of total installed storage using two 2TB hard drives.
Which RAID modes are supported?
The LS220D0402 supports RAID 0, RAID 1, and JBOD.
Does the LS220D0402 support Gigabit Ethernet?
Yes. The system has one RJ-45 Ethernet port supporting 10/100/1000Mbps auto-sensing operation.
How much memory does the LS220D0402 have?
The LS220D0402 has 256MB of DDR3 memory.
What network file services are supported?
The LS220D0402 supports SMB/CIFS, AFP, and FTP/FTPS network file services over TCP/IP.
