Replacement for KFJ-E50-512: Drop-In Alternatives We Stock
Looking for a replacement for the KFJ-E50-512 (Kingston KFJ-E50/512 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM Memory)? Pro Disk Network ships Kingston 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 KFJ-E50-512
| SKU | KFJ-E50-512 |
|---|---|
| Product | Kingston KFJ-E50/512 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM Memory |
| Current price | $157.79 |
| Stock status | In Stock |
| Detail page | View KFJ-E50-512 › |
Drop-in replacements for KFJ-E50-512
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.
Kingston KFJ-FPC165/512 512MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: KFJ-FPC165-512
Price: $89.12
Kingston KFJ-E600/512 512MB Kit (2 X 256MB) DDR-400MHz PC3200 non-ECC Unbuffered CL3 184-Pin DIMM Memory
SKU: KFJ-E600-512
Price: $197.88
Kingston KFJ-PRF250/512 512MB Kit (2 X 256MB) DDR-200MH PC1600z ECC Registered CL2 184-Pin DIMM Memory
SKU: KFJ-PRF250-512
Price: $201.86
Kingston KFJ-R610/512 512MB Kit (2 X 256MB) DDR-266MHz PC2100 ECC Unbuffered CL2.5 184-Pin DIMM Memory
SKU: KFJ-R610-512
Price: $201.86
Kingston KFJ-TW200/512 512MB Kit (2 X 256MB) 133MHz PC133 ECC Registered CL3 168-Pin DIMM Memory
SKU: KFJ-TW200-512
Price: $564.83
Kingston KFJ-E50/1G 1GB Kit (2 X 512MB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM Memory
SKU: KFJ-E50-1G
Price: $141.71
Kingston KFJ-BX533K2/1G 1GB Kit (2 X 512MB) DDR2-533MHz PC2-4200 ECC Fully Buffered CL4 240-Pin DIMM Single Rank Memory
SKU: KFJ-BX533K2-1G
Price: $169.11
Kingston Technology KVR533D2N4K2/512 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 240-Pin DIMM 1.8V Memory
SKU: KVR533D2N4K2-512
Price: $141.71
Kingston KVR533D2E4K2/512 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 ECC Unbuffered CL4 240-Pin DIMM Memory
SKU: KVR533D2E4K2-512
Price: $157.79
Kingston KTA-G5533/512 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 240-Pin DIMM Memory
SKU: KTA-G5533-512
Price: $165.18
Kingston KFJ-FPC165/256 256MB DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 200-Pin SoDimm Memory Module
SKU: KFJ-FPC165-256
Price: $97.37
Kingston KFJ-BX533K2/4G 4GB Kit (2 X 2GB) DDR2-533MHz PC2-4200 ECC Fully Buffered CL4 240-Pin DIMM Memory
SKU: KFJ-BX533K2-4G
Price: $155.68
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.