Replacement for 73P3643: Drop-In Alternatives We Stock
Looking for a replacement for the 73P3643 (73P3643 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module)? Pro Disk Network ships IBM 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 73P3643
| SKU | 73P3643 |
|---|---|
| Product | 73P3643 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module |
| Current price | $94.76 |
| Stock status | In Stock |
| Detail page | View 73P3643 › |
Drop-in replacements for 73P3643
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.
73P3842 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm 1.8V Memory Module
SKU: 73P3842
Price: $94.76
38L5139 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 38L5139
Price: $94.76
30R6228 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module for Neoware c50 e90 e370
SKU: 30R6228
Price: $94.76
41V6504 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 41V6504
Price: $94.76
40E8994 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 40E8994
Price: $94.76
38L5135 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 38L5135
Price: $94.76
40E6961 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 40E6961
Price: $94.76
73P3849 - IBM 512MB DDR2 533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 73P3849
Price: $94.76
73P3843 - IBM 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 73P3843
Price: $94.76
38L5136 - IBM 1GB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 38L5136
Price: $108.97
38L5140 - IBM Lenovo 1GB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: 38L5140
Price: $108.97
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.