Cisco 128GB 3200MHz DDR4 PC4-25600 CL21 288-Pin DIM 1.2V Load-Reduced Quad Rank x4 Memory Module – UCS-ML-128G4RW

Cisco UCS-ML-128G4RW 128GB DDR4 LRDIMM Server Memory

Increase memory capacity in a compatible Cisco server environment with the UCS-ML-128G4RW 128GB DDR4 load-reduced memory module. This 288-pin DIMM is specified at 3200MHz with a PC4-25600 rating, CL21 latency, 1.2V operation, and quad-rank x4 construction. Those detailed attributes make the module a strong fit for infrastructure teams planning high-capacity server upgrades, replacing a failed memory component, or standardizing a system population around validated LRDIMM specifications. Because load-reduced memory must be matched carefully with the host platform and other installed DIMMs, buyers should confirm the server memory support list before placing an order.

Key Features

• 128GB DDR4 memory capacity
• 3200MHz operating speed
• PC4-25600 module rating
• CL21 latency specification
• Load-reduced quad-rank x4 design
• 288-pin DIMM form factor

Product Specifications

• Part Number: UCS-ML-128G4RW
• Manufacturer: Cisco
• Capacity: 128GB
• Memory Type: DDR4 load-reduced memory
• Speed: 3200MHz
• Module Rating: PC4-25600
• Latency: CL21
• Form Factor: 288-pin DIMM
• Voltage: 1.2V
• Rank: Quad rank x4

High-Capacity Memory Specifications

The 128GB capacity and load-reduced design make this module relevant to server configurations that need substantial memory density. The PC4-25600 rating, CL21 timing, and quad-rank x4 layout should be considered together with the host server”s supported population pattern and any requirements for matching modules across memory channels.

Use Cases

• Adding high-capacity memory to a compatible Cisco server
• Replacing a 128GB DDR4 LRDIMM during maintenance
• Supporting virtualization and data-intensive server workloads
• Refreshing memory populations across a data-center platform

Compatibility

Verify the target Cisco server, DDR4 support, load-reduced memory requirement, rank compatibility, memory population rules, and 288-pin DIMM support before installation. Do not mix memory types unless the host platform explicitly supports the combination.

Frequently Asked Questions

What capacity does the UCS-ML-128G4RW provide?

The module is listed with 128GB capacity.

What type of memory is it?

It is a DDR4 load-reduced memory module in a 288-pin DIMM format.

What speed and voltage are specified?

The module is listed at 3200MHz and 1.2V.

The UCS-ML-128G4RW is a targeted option for server buyers who need high-density 128GB DDR4 memory with a load-reduced quad-rank x4 design. Match every specification against the host platform before ordering, particularly when expanding an existing memory population. The exact Cisco part number helps administrators maintain consistent inventory records, reduce compatibility risk, and plan high-capacity server upgrades with the technical detail required for professional data-center work.