Replacement for CT2K4G4DFS8266: Drop-In Alternatives We Stock
Looking for a replacement for the CT2K4G4DFS8266 (CT2K4G4DFS8266 - Crucial 8GB Kit (2 X 4GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 288-Pin DIMM 1.2V Single Rank Memory)? Pro Disk Network ships Crucial 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 CT2K4G4DFS8266
| SKU | CT2K4G4DFS8266 |
|---|---|
| Product | CT2K4G4DFS8266 - Crucial 8GB Kit (2 X 4GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 288-Pin DIMM 1.2V Single Rank Memory |
| Current price | $177.42 |
| Stock status | In Stock |
| Detail page | View CT2K4G4DFS8266 › |
Drop-in replacements for CT2K4G4DFS8266
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.
BLT2K4G4D26AFTA - Crucial Technology 8GB Kit (2 X 4GB) DDR4-2666MHz PC4-21300 non-ECC Unbuffered CL16 288-Pin DIMM 1.2V Dual Rank Memory
SKU: BLT2K4G4D26AFTA
Price: $153.29
BLE2K4G4D26AFEA - Crucial Technology 8GB Kit (2 X 4GB) DDR4-2666MHz PC4-21300 non-ECC Unbuffered CL16 288-Pin DIMM 1.2V Memory
SKU: BLE2K4G4D26AFEA
Price: $159.36
CT2K4G4SFS8266 - Crucial 8GB Kit (2 X 4GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 260-Pin SoDimm 1.2V Single Rank Memory
SKU: CT2K4G4SFS8266
Price: $170.33
CT2K4G4DFS6266 - Crucial 8GB Kit (2 X 4GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 288-Pin DIMM 1.2V Single Rank Memory
SKU: CT2K4G4DFS6266
Price: $177.42
CT2K4G4RFS8266 - Crucial 8GB Kit (2 X 4GB) DDR4-2666MHz PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Single Rank Memory
SKU: CT2K4G4RFS8266
Price: $278.86
CT2K4G4SFS6266 - Crucial 8GB Kit (2X4GB) DDR4-2666MHz PC4-21300 non-ECC Unbuffered CL19 260-Pin SoDimm 1.2V Single Rank Memory
SKU: CT2K4G4SFS6266
Price: $163.05
CT4K8G4WFD8266 - Crucial 32GB Kit (4 X 8GB) DDR4-2666MHz PC4-21300 ECC Unbuffered CL19 288-Pin DIMM 1.2V Dual Rank Memory
SKU: CT4K8G4WFD8266
Price: $217.89
CT2K8G4SFS8266 - Crucial 16GB Kit (2 x 8GB) DDR4-2666MHz PC4-21300 non-ECC Unbuffered CL19 260-Pin SoDimm 1.2V Single Rank Memory
SKU: CT2K8G4SFS8266
Price: $256.80
CT2K8G4SFRA266 - Crucial 16GB Kit (2 x 8GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 260-Pin SoDimm 1.2V Single Rank Memory
SKU: CT2K8G4SFRA266
Price: $256.80
CT2K8G4DFRA266 - Crucial 16GB Kit (2 X 8GB)DDR4-2666MHz PC4-21300non-ECC Unbuffered CL19 288-Pin DIMM 1.2V Single Rank Memory
SKU: CT2K8G4DFRA266
Price: $260.07
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.