Lenovo 16GB DDR4-2666 ECC Unbuffered DIMM — 01KR360

The Lenovo 01KR360 is a 16GB DDR4-2666 (PC4-21300) ECC Unbuffered DIMM operating at 1.2V with CL19 latency in a dual rank configuration. An alternate part number variant of the 4ZC7A08699, it delivers DDR4-2666 ECC UDIMM memory for Lenovo servers and workstations supporting unbuffered ECC memory.

Key Features

• 16GB DDR4-2666 (PC4-21300) — ECC Unbuffered DIMM
• ECC (Error Correcting Code) — single-bit error detection and correction
• Unbuffered (UDIMM) — compatible with select server and workstation platforms
• Dual Rank
• 1.2V operating voltage
• CL19 latency
• 288-pin DIMM — standard DDR4 interface

Product Specifications

• Part Number: 01KR360
• Manufacturer: Lenovo
• OEM Status: OEM Lenovo
• Capacity: 16GB
• Speed: DDR4-2666 (PC4-21300)
• Type: ECC Unbuffered DIMM (ECC UDIMM)
• Form Factor: 288-Pin DIMM
• Voltage: 1.2V
• CAS Latency: CL19
• Rank: Dual Rank

Memory Specifications

• Capacity: 16GB
• DDR Generation: DDR4
• Speed: 2666MHz (PC4-21300)
• CAS Latency: CL19
• Voltage: 1.2V
• ECC: Yes
• Buffered: Unbuffered (UDIMM)
• Rank: Dual Rank
• Form Factor: 288-Pin DIMM

Performance Specifications

• Bandwidth: Up to 21,300 MB/s (PC4-21300)
• Operating Temperature: 0°C to 85°C

Use Cases

• ECC memory for Lenovo servers and workstations supporting DDR4-2666 ECC UDIMM
• Workstation platforms requiring ECC UDIMM at DDR4-2666
• Entry-level server memory with DDR4-2666 speed and ECC protection

Compatibility

• Lenovo servers and workstations supporting DDR4-2666 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 01KR360 and 4ZC7A08699?

Both are Lenovo 16GB DDR4-2666 ECC Unbuffered CL19 Dual Rank DIMMs — alternate part numbers that may differ in DRAM chip width or specific system validation. Verify from Lenovo's compatibility matrix.

What is the difference between ECC UDIMM and RDIMM?

ECC UDIMM provides error correction without a register chip, compatible with workstation and select server platforms. RDIMM uses a register for signal buffering and supports higher DIMM counts per channel. They are not interchangeable.

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 01KR360 delivers 16GB of DDR4-2666 ECC Unbuffered server memory in a dual rank configuration — validated for Lenovo servers and workstations requiring DDR4-2666 ECC UDIMM.