Replacement for X5277A: Drop-In Alternatives We Stock
Looking for a replacement for the X5277A (X5277A - Sun 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Single Rank Memory)? 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 X5277A
| SKU | X5277A |
|---|---|
| Product | X5277A - Sun 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Single Rank Memory |
| Current price | $208.18 |
| Stock status | In Stock |
| Detail page | View X5277A › |
Drop-in replacements for X5277A
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.
PNY KCDIMM1GBN/5300/2-BX 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 240-Pin DIMM Single Rank Memory
SKU: KCDIMM1GBN-5300-2-BX
Price: $155.01
PNY K-SODI1GBN/5300/2-BX 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 Non-ECC Unbuffered CL5 200-Pin SoDimm Memory
SKU: K-SODI1GBN-5300-2-BX
Price: $180.79
SEWX2A1Z - Sun 4GB Kit (4 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory for Sun SPARC Enterprise M3000 Server
SKU: SEWX2A1Z
Price: $394.46
596-7868 - Sun 4GB Kit (4 X 1GB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Dual Rank Memory for Sun SPARC Enterprise M3000 Server
SKU: 596-7868
Price: $684.86
Kingston KTA-MB667K2/1G 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 non-ECC Unbuffered CL5 200-Pin SoDimm Memory (Kit of 2)
SKU: KTA-MB667K2-1G
Price: $184.04
X5277A-Z - Sun 1GB Kit (2 X 512MB) PC2-5300 DDR2-667MHz ECC Unbuffered CL5 240-Pin DIMM Memory
SKU: X5277A-Z
Price: $208.18
540-7058 - Sun 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Single Rank Memory for Ultra M2 Workstation
SKU: 540-7058
Price: $208.18
540-7058-01 - Sun 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Unbuffered CL5 240-Pin DIMM Single Rank Memory for Ultra M2 Workstation
SKU: 540-7058-01
Price: $208.18
Dataram DRH667FB/1GB 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Registered CL5 240-Pin DIMM Single Rank Memory
SKU: DRH667FB-1GB
Price: $155.01
Dataram DRIX3650/1GB 1GB Kit (2 X 512MB) DDR2-667MHz PC2-5300 ECC Fully Buffered CL5 240-Pin DIMM Single Rank Memory
SKU: DRIX3650-1GB
Price: $166.14
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
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.