Alternative to X6321A-04: Better-Value Equivalents in Stock
Comparing the X6321A-04 (X6321A-04 - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory) against alternatives? Pro Disk Network stocks 12 similar 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 X6321A-04
| SKU | X6321A-04 |
|---|---|
| Product | X6321A-04 - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM 1.8V Dual Rank Memory |
| Current price | $216.46 |
| Stock status | In Stock |
| Detail page | View X6321A-04 › |
Alternatives to X6321A-04
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.
X4204A - Sun 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Dual Rank Memory for Blade T6320
SKU: X4204A
Price: $216.46
541-1304 - Sun 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory
SKU: 541-1304
Price: $371.50
594-6044-01 - Sun 8GB Kit (2 X 4GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory
SKU: 594-6044-01
Price: $371.50
X6380A-04 - Sun 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 Fully Buffered CL5 240-Pin DIMM 1.8V Dual Rank Memory
SKU: X6380A-04
Price: $270.63
CT739104 - Crucial 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDimm Memory
SKU: CT739104
Price: $74.78
CMP667FB2048G5K2 - Centon 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin FB-DIMM 1.8V Dual Rank Memory
SKU: CMP667FB2048G5K2
Price: $152.95
CMP667SO2048K2 - Centon 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 200-Pin SODIMM 1.8V Dual Rank Memory
SKU: CMP667SO2048K2
Price: $152.95
CMP667PC2048K2 - Centon 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 240-Pin UDIMM 1.8V Dual Rank Memory
SKU: CMP667PC2048K2
Price: $155.42
397404-B21 - Compaq 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Dual Rank Memory for XW460C Workstation
SKU: 397404-B21
Price: $171.54
36L6043 - IBM 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory
SKU: 36L6043
Price: $175.88
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.