Replacement for UCS-ML-128G4RW: Drop-In Alternatives We Stock
Looking for a replacement for the UCS-ML-128G4RW (UCS-ML-128G4RW - Cisco 128GB PC4-25600 DDR4-3200MHz ECC Registered CL22 LRDIMM 1.2V Quad-Rank Memory Module)? Pro Disk Network ships Cisco drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the UCS-ML-128G4RW
| SKU | UCS-ML-128G4RW |
|---|---|
| Product | UCS-ML-128G4RW - Cisco 128GB PC4-25600 DDR4-3200MHz ECC Registered CL22 LRDIMM 1.2V Quad-Rank Memory Module |
| Stock status | In Stock |
| Detail page | View UCS-ML-128G4RW › |
Drop-in replacements for UCS-ML-128G4RW
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
UCS-MR-X32G2RW - Cisco 32GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Dual-Rank Memory Module
SKU: UCS-MR-X32G2RW
Price: $498.33
UCS-MR-X64G2RW - Cisco 64GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Dual-Rank Memory Module
SKU: UCS-MR-X64G2RW
Price: $845.03
UCS-MR-X16G1RW - Cisco 16GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Single-Rank Memory Module
SKU: UCS-MR-X16G1RW
Price: $2,802.18
UCSX-MP-128GS-B0 - Cisco 128GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin DCPMM 1.2V Memory Module
SKU: UCSX-MP-128GS-B0
Price: $1,007.16
UCSX-ML-128G4RW - Cisco 128GB PC4-25600 DDR4-3200MHz ECC Registered CL22 LRDIMM 1.2V Quad-Rank Memory Module
SKU: UCSX-ML-128G4RW
Price: $2,837.41
HX-ML-128G4RW - Cisco 128GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Quad Rank Memory Module
SKU: HX-ML-128G4RW
Price: $2,837.41
UCSX-MR-X16G1RW - Cisco 16GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Single-Rank Memory Module
SKU: UCSX-MR-X16G1RW
Price: $342.11
UCSX-MR-X32G2RW - Cisco 32GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Dual-Rank Memory Module
SKU: UCSX-MR-X32G2RW
Price: $498.33
UCSX-MR-X32G1RW - Cisco 32GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin RDIMM 1.2V Single Rank Memory Module
SKU: UCSX-MR-X32G1RW
Price: $586.16
HX-MR-X64G2RW - Cisco 64GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin RDIMM 1.2V Dual Rank Memory Module
SKU: HX-MR-X64G2RW
Price: $845.03
UCSX-MR-X64G2RW - Cisco 64GB PC4-25600 DDR4-3200MHz ECC Registered CL22 RDIMM 1.2V Dual-Rank Memory Module
SKU: UCSX-MR-X64G2RW
Price: $845.03
UCSX-ML-256G8RW - Cisco 256GB PC4-25600 DDR4-3200MHz ECC Registered LRDIMM 1.2 V Quad-Rank Memory Module
SKU: UCSX-ML-256G8RW
Price: $6,863.41
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.