Replacement for P23535-B21: Drop-In Alternatives We Stock
Looking for a replacement for the P23535-B21 (P23535-B21 - HP 256GB DDR4-3200MHz PC4-25600 CL22 Optane Persistent 200 Series 288-Pin DIMM 1.2V Memory Module)? Pro Disk Network ships HP 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 P23535-B21
| SKU | P23535-B21 |
|---|---|
| Product | P23535-B21 - HP 256GB DDR4-3200MHz PC4-25600 CL22 Optane Persistent 200 Series 288-Pin DIMM 1.2V Memory Module |
| Stock status | In Stock |
| Detail page | View P23535-B21 › |
Drop-in replacements for P23535-B21
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.
P23532-B21 - HP 128GB DDR4-3200MHz PC4-25600 CL22 Optane Persistent 200 Series 288-Pin DIMM 1.2V Memory Module
SKU: P23532-B21
Price: $2,594.74
844071-001 - HP 128GB DDR4-2666MHz PC4-21300 CL19 Persistent Optane DIMM Memory Module
SKU: 844071-001
Price: $178.95
P12109-001 - HP 128GB DDR4-21300MHz PC4-2666 CL19 288-Pin Optane Persistent DCPMM 1.2V Memory Module
SKU: P12109-001
Price: $278.95
835804-B21 - HP 128GB DDR4-21300MHz PC4-2666 CL19 288-Pin Optane Persistent DCPMM 1.2V Memory Module
SKU: 835804-B21
Price: $278.95
876402-B21 - HPE 512GB PC4-21300 DDR4-2666MHz ECC CL19 Persistent Optane DC DIMM Memory Module
SKU: 876402-B21
Price: $1,742.53
P20506-001 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P20506-001
Price: $2,250.53
P07654-B21 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P07654-B21
Price: $5,648.72
P06039-K21 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P06039-K21
Price: $6,005.49
P06039-H21 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P06039-H21
Price: $6,005.49
P43172-B21 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P43172-B21
Price: $6,005.49
P11448-0A1 - HPE 256GB DDR4-3200MHz PC4-25600 ECC Registered CL22 288-Pin LRDIMM 1.2V Octal Rank Memory Module
SKU: P11448-0A1
Price: $6,005.49
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.