Replacement for E66561: Drop-In Alternatives We Stock
Looking for a replacement for the E66561 (E66561 - Intel Single-Port 10GBase-LR Ethernet PCIe Server Adapter)? Pro Disk Network ships Intel 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 E66561
| SKU | E66561 |
|---|---|
| Product | E66561 - Intel Single-Port 10GBase-LR Ethernet PCIe Server Adapter |
| Stock status | In Stock |
| Detail page | View E66561 › |
Drop-in replacements for E66561
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.
XL710QDA2 - Intel 40GbE Dual Port QSFP+ PCIe 3.0 x8 Low-Profile Ethernet Converged Network Adapter
SKU: XL710QDA2
Price: $1,177.47
PWLA8490MTG1P20 - Intel PRO/1000 MT Single-Port RJ-45 Gigabit Ethernet PCI Express Server Network Adapter
SKU: PWLA8490MTG1P20
Price: $153.83
540-BCCN - Dell Intel XXV710 Dual Port 25GbE SFP28 PCIe Adapter Low Profile for Rack Server PowerEdge C4140
SKU: 540-BCCN
Price: $178.95
MKJNJ - Dell Intel XXV710 Dual Port 25GbE SFP28 PCIe Adapter Low Profile for Rack Server PowerEdge C4140
SKU: MKJNJ
Price: $305.26
430-4441 - Dell Intel Ethernet Server Adapter - Network Adapter - 2 Ports
SKU: 430-4441
Price: $482.41
Intel EXL710QDA1G1P5 XL710 Single-Port 40Gb/s QSFP+ PCI Express 3.0 x8 Low Profile Ethernet Converged Network Adapter
SKU: EXL710QDA1G1P5
Price: $210.53
4XC0H00338 - Lenovo Intel I210-T1 Single Port Gigabit Ethernet Adapter for ThinkStation
SKU: 4XC0H00338
Price: $244.63
E10G41BFSRG1P5 - Intel X520-SR1 Single Port 10Gbps LC Fiber Optic PCI-Express 2.0 x8 Gigabit Ethernet Converged Network Adapter
SKU: E10G41BFSRG1P5
Price: $296.30
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.