Lenovo 4GB DDR4-2133MHz PC4-17000 ECC Unbuffered CL15 288-Pin DIMM 1.2V Single Rank Memory Module – 46W0809

Lenovo 4GB DDR4-2133 ECC Unbuffered DIMM — 46W0809

The Lenovo 46W0809 is a 4GB DDR4-2133 (PC4-17000) ECC Unbuffered DIMM operating at 1.2V with CL15 latency in a single rank configuration. An alternate part number variant of the 46W0811 and 46W0808 family, it delivers entry-level DDR4-2133 ECC UDIMM memory for Lenovo servers and workstations supporting ECC UDIMM.

Key Features

• 4GB DDR4-2133 (PC4-17000) — ECC Unbuffered DIMM
• ECC (Error Correcting Code) — single-bit error detection and correction
• Unbuffered (UDIMM) — compatible with select server and workstation platforms
• Single Rank
• 1.2V operating voltage
• CL15 latency
• 288-pin DIMM — standard DDR4 interface

Product Specifications

• Part Number: 46W0809
• Manufacturer: Lenovo
• OEM Status: OEM Lenovo
• Capacity: 4GB
• Speed: DDR4-2133 (PC4-17000)
• Type: ECC Unbuffered DIMM (ECC UDIMM)
• Form Factor: 288-Pin DIMM
• Voltage: 1.2V
• CAS Latency: CL15
• Rank: Single Rank

Memory Specifications

• Capacity: 4GB
• DDR Generation: DDR4
• Speed: 2133MHz (PC4-17000)
• CAS Latency: CL15
• Voltage: 1.2V
• ECC: Yes
• Buffered: Unbuffered (UDIMM)
• Rank: Single Rank
• Form Factor: 288-Pin DIMM

Performance Specifications

• Bandwidth: Up to 17,000 MB/s (PC4-17000)
• Operating Temperature: 0°C to 85°C

Use Cases

• Entry-level ECC memory for Lenovo servers and workstations supporting DDR4-2133 ECC UDIMM
• Low-capacity ECC UDIMM replacement or expansion
• Workstation platforms requiring ECC UDIMM at DDR4-2133

Compatibility

• Lenovo servers and workstations supporting DDR4-2133 ECC UDIMM
• Not compatible with RDIMM-only server platforms
• Verify Lenovo compatibility matrix for specific system models

Frequently Asked Questions

What is the difference between 46W0809, 46W0811, and 46W0808?

All three are Lenovo 4GB DDR4-2133 ECC Unbuffered CL15 Single Rank DIMMs — alternate part numbers that may differ in DRAM manufacturer or specific system validation. Verify from Lenovo”s compatibility matrix.

Is this compatible with non-Lenovo systems?

This is an OEM Lenovo module validated for Lenovo systems. Compatibility with non-Lenovo platforms is not guaranteed.

The Lenovo 46W0809 delivers 4GB of DDR4-2133 ECC Unbuffered server memory in a single rank configuration — validated for Lenovo servers and workstations requiring DDR4-2133 ECC UDIMM.