Replacement for A4B28QA4YPWDSO: Drop-In Alternatives We Stock
Looking for a replacement for the A4B28QA4YPWDSO (A4B28QA4YPWDSO - ATP 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module)? Pro Disk Network ships 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 A4B28QA4YPWDSO
| SKU | A4B28QA4YPWDSO |
|---|---|
| Product | A4B28QA4YPWDSO - ATP 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module |
| Current price | $1,760.68 |
| Stock status | In Stock |
| Detail page | View A4B28QA4YPWDSO › |
Drop-in replacements for A4B28QA4YPWDSO
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.
A4B08QD8BNTDME - ATP 8GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: A4B08QD8BNTDME
Price: $162.46
CT128G4ZFE426S - Crucial 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: CT128G4ZFE426S
Price: $82.17
78P4200 - IBM 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: 78P4200
Price: $154.95
840760-191 - HP 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: 840760-191
Price: $309.89
01KR371 - Lenovo 128GB DDR4-2666MHz/PC4-21300 ECC Registered CL19 288-Pin RDIMM 1.2V Octal Rank Memory Module
SKU: 01KR371
Price: $464.84
01KR375 - Lenovo 128GB DDR4-2666MHz/PC4-21300 ECC Registered CL19 288-Pin RDIMM 1.2V Octal Rank Memory Module
SKU: 01KR375
Price: $630.68
CT4K32G4RFD4266 - Crucial 128GB Kit (4 x 32GB) DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin RDIMM 1.2V Dual Rank Memory Module
SKU: CT4K32G4RFD4266
Price: $774.05
M393AAK40B42-CWD - Samsung 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: M393AAK40B42-CWD
Price: $907.37
M393AAK40B42-CWD6Q - Samsung 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: M393AAK40B42-CWD6Q
Price: $907.37
M393AAK40B42-CWD7Q - Samsung 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Octal Rank Memory Module
SKU: M393AAK40B42-CWD7Q
Price: $907.37
M393AAK40B42-CWD6Y - Samsung 128GB DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin RDIMM 1.2V Octal Rank Memory Module
SKU: M393AAK40B42-CWD6Y
Price: $907.37
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.