Alternative to X5278A: Better-Value Equivalents in Stock
Comparing the X5278A (X5278A - Sun 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Dual Rank Memory for Fire X2100 M2 Server) 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 X5278A
| SKU | X5278A |
|---|---|
| Product | X5278A - Sun 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Dual Rank Memory for Fire X2100 M2 Server |
| Current price | $228.71 |
| Stock status | In Stock |
| Detail page | View X5278A › |
Alternatives to X5278A
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.
Dataram DRSX2100M2/2GB 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Dual Rank Memory for Sun Fire X2100 M2 Server
SKU: DRSX2100M2-2GB
Price: $152.95
PNY K-SODI2GBN/5300/2-BX 2GB Kit (2 X 1GB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL4 200-Pin SoDimm Dual Rank Memory
SKU: K-SODI2GBN-5300-2-BX
Price: $169.87
541-1313 - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory for Sun Fire X4540 Server
SKU: 541-1313
Price: $216.46
X5094A - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory for Sun Blade X8440 Server
SKU: X5094A
Price: $216.46
540-7669 - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory for Sun Blade X6240 X6440 Servers
SKU: 540-7669
Price: $254.86
X4292A - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory for Sun Blade X6220 Server
SKU: X4292A
Price: $254.86
X5094AC - Sun 4GB Kit (2 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Memory for Sun Blade X8440 Server
SKU: X5094AC
Price: $270.63
596-7869 - Sun 8GB Kit (4 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory for Sun SPARC Enterprise M3000 Server
SKU: 596-7869
Price: $421.53
SELX2B2P - Sun 16GB Kit (8 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory for Sun SPARC Enterprise M4000/M5000 Server
SKU: SELX2B2P
Price: $1,006.04
SEMY2B1Z - Sun 32GB Kit (16 X 2GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory for Sun SPARC Enterprise M8000/M9000
SKU: SEMY2B1Z
Price: $2,025.50
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.