Alternative to 4521-9406: Better-Value Equivalents in Stock
Comparing the 4521-9406 (4521-9406 - IBM 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory) against alternatives? Pro Disk Network stocks 12 similar IBM parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the 4521-9406
| SKU | 4521-9406 |
|---|---|
| Product | 4521-9406 - IBM 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory |
| Current price | $285.75 |
| Stock status | In Stock |
| Detail page | View 4521-9406 › |
Alternatives to 4521-9406
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.
9406-4521 - IBM 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 9406-4521
Price: $285.75
4521-8203 - IBM 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 4521-8203
Price: $285.75
9408-4521 - IBM 1GB DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory Module
SKU: 9408-4521
Price: $150.39
4522-9406 - IBM 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 4522-9406
Price: $175.88
9406-4522 - IBM 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 9406-4522
Price: $175.88
9406-4532 - IBM 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory
SKU: 9406-4532
Price: $207.08
9406-5694 - IBM 8GB Kit (4 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 9406-5694
Price: $342.50
5694-9406 - IBM 8GB Kit (4 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 5694-9406
Price: $342.50
4474-9406 - IBM 2GB Kit (2 X 1GB) DDR2-533MHz PC2-4200 ECC Registered CL4 276-Pin DIMM Memory
SKU: 4474-9406
Price: $185.83
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.