Replacement for CFP-40G-SR4-RF: Drop-In Alternatives We Stock
Looking for a replacement for the CFP-40G-SR4-RF (CFP-40G-SR4-RF - Cisco 40Gbps 40GBase-SR4 Multi-mode Fiber 100m 850nm MPO Connector CFP Transceiver Module)? Pro Disk Network ships Cisco 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 CFP-40G-SR4-RF
| SKU | CFP-40G-SR4-RF |
|---|---|
| Product | CFP-40G-SR4-RF - Cisco 40Gbps 40GBase-SR4 Multi-mode Fiber 100m 850nm MPO Connector CFP Transceiver Module |
| Current price | $1,790.78 |
| Stock status | In Stock |
| Detail page | View CFP-40G-SR4-RF › |
Drop-in replacements for CFP-40G-SR4-RF
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.
Cisco CFP-40G-SR4 40Gb/s 40GBase-SR4 Multi-Mode Fiber 150m 850nm MPO Connector CFP Transceiver Module Spare
SKU: CFP-40G-SR4
Price: $299.00
CFP-100G-SR10 - Cisco Multi-mode 100Gbps 100GBase-SR10 Fiber 150m 850nm MTP/MPO Connector CFP Transceiver Module
SKU: CFP-100G-SR10
Price: $491.22
CFP-100G-SR10-RF - Cisco Multi-mode 100Gbps 100GBase-SR10 Fiber 150m 850nm MTP/MPO Connector CFP Transceiver Module
SKU: CFP-100G-SR10-RF
Price: $491.22
Cisco CFP-40G-LR4 Single-mode 40Gbps 40GBase-LR4 Fiber 10km 1310nm Duplex SC Connector CFP Transceiver Module
SKU: CFP-40G-LR4
Price: $1,837.32
QSFP-100G-SR4-S - Cisco 100Gb/s 100GBase-SR4 Multi-Mode Fiber 100m 850nm MPO-12 Connector QSFP28 Transceiver Module
SKU: QSFP-100G-SR4-S
Price: $64.46
ONS-CXP-100G-SR10 - Cisco 100Gb/s 100GBase-SR10 Multi-Mode Fiber 100m 850nm MTP/MPO Connector CXP Transceiver Module
SKU: ONS-CXP-100G-SR10
Price: $113.36
10-3142-01 - Cisco Multi-mode 100Gbps 100GBase-SR4 Fiber 100m 850nm MPO-12 Connector QSFP28 Transceiver Module
SKU: 10-3142-01
Price: $245.62
QSFP-100G-SR4-S-RF - Cisco 100Gbps 100GBase-SR4 Multi-mode Fiber 100m 850nm MPO-12 Connector QSFP28 Transceiver Module
SKU: QSFP-100G-SR4-S-RF
Price: $405.76
CPAK-100G-SR10 - Cisco 100Gb/s 100GBase-SR10 Multi-Mode Fiber 100m 850nm MPO/MTP Connector CPAK Transceiver Module
SKU: CPAK-100G-SR10
Price: $414.45
CXP-100G-SR10 - Cisco 100Gb/s 100GBase-SR10 Multi-Mode Fiber 100m 850nm MTP/MPO Connector CXP Transceiver Module
SKU: CXP-100G-SR10
Price: $511.51
Cisco QSFP-40G-SR4 40Gb/s 40GBase-SR4 Multi-Mode Fiber 150m 850nm MPO Connector QSFP+ Transceiver Module Spare
SKU: QSFP-40G-SR4
Price: $63.14
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.