Replacement for N256D21OPT: Drop-In Alternatives We Stock
Looking for a replacement for the N256D21OPT (N256D21OPT - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm 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 N256D21OPT
| SKU | N256D21OPT |
|---|---|
| Product | N256D21OPT - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm Memory Module |
| Current price | $85.72 |
| Stock status | In Stock |
| Detail page | View N256D21OPT › |
Drop-in replacements for N256D21OPT
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.
6432VKDYA8G09TWK-OF0 - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm Memory Module
SKU: 6432VKDYA8G09TWK-OF0
Price: $85.72
69001300-F00-CSC - PNY 256MB DDR-266MHz PC2100 ECC Unbuffered 200-Pin SoDimm Memory Module
SKU: 69001300-F00-CSC
Price: $104.43
69001292-F00-CSC - PNY 512MB DDR-266MHz PC2100 ECC Unbuffered CL2.5 200-Pin SoDimm Single Rank Memory Module
SKU: 69001292-F00-CSC
Price: $126.79
69001292-H00-CSC - PNY 512MB DDR-266MHz PC2100 ECC Unbuffered CL2.5 200-Pin SoDimm Single Rank Memory Module
SKU: 69001292-H00-CSC
Price: $126.79
69001292-C00-CSC - PNY 512MB DDR-266MHz PC2100 ECC Unbuffered CL2.5 200-Pin SoDimm Single Rank Memory Module
SKU: 69001292-C00-CSC
Price: $126.79
69001679SMF - PNY 256MB DDR-266MHz PC2100 ECC Unbuffered CL2.5 184-Pin DIMM Memory Module
SKU: 69001679SMF
Price: $87.45
6432WKDXA8G09TWK-PF0 - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 184-Pin DIMM Memory Module
SKU: 6432WKDXA8G09TWK-PF0
Price: $87.45
6432WMDXA8G09TWK-PH0 - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 184-Pin DIMM Memory Module
SKU: 6432WMDXA8G09TWK-PH0
Price: $87.45
CHP1147 - PNY 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 100-Pin SoDimm Memory Module
SKU: CHP1147
Price: $94.36
N256D27OPT - PNY 256MB DDR-333MHz PC2700 non-ECC Unbuffered CL2.5 200-Pin SoDimm Memory Module
SKU: N256D27OPT
Price: $87.45
MT8VDDT3264HG-265G2 - Micron 256MB DDR-266MHz PC2100 non-ECC Unbuffered CL2.5 200-Pin SoDimm Single Rank Memory Module
SKU: MT8VDDT3264HG-265G2
Price: $82.62
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.