Replacement for FWLF-1631-32: Drop-In Alternatives We Stock
Looking for a replacement for the FWLF-1631-32 (FWLF-1631-32 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1551.72nm SFP Transceiver Module)? 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 FWLF-1631-32
| SKU | FWLF-1631-32 |
|---|---|
| Product | FWLF-1631-32 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1551.72nm SFP Transceiver Module |
| Current price | $1,222.64 |
| Stock status | In Stock |
| Detail page | View FWLF-1631-32 › |
Drop-in replacements for FWLF-1631-32
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.
FTLX3811M356 - Finisar 10Gbps DWDM 10GBase-X Single-mode Fiber 80km 1532.68nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3811M356
Price: $1,240.33
FWLF1634RL32 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1551.72nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL32
Price: $1,826.84
FWLF1634RL35 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1549.32nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL35
Price: $1,826.84
FWLF1634RL40 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1545.32nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL40
Price: $1,826.84
FWLF1634RL56 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1532.68nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL56
Price: $1,826.84
FTLX3811M320 - Finisar 10Gbps DWDM 10GBase-X Single-mode Fiber 80km 1561.42nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3811M320
Price: $3,477.87
DWDM-SFP10G-49.32-RF - Cisco Single-mode 10Gbps 10GBase-DWDM Fiber 80km 1549.32nm Duplex LC Connector SFP+ Transceiver Module
SKU: DWDM-SFP10G-49.32-RF
Price: $736.84
DWDM-SFP10G-49.32 - Cisco Single-mode 10Gbps 10GBase-DWDM Fiber 80km 1549.32nm Duplex LC Connector SFP+ Transceiver Module
SKU: DWDM-SFP10G-49.32
Price: $1,015.64
DWDM-SFP10G-32.68 - Cisco Single-Mode 10Gbps 10GBase-DWDM Fiber 80km 1532.68nm Duplex LC Connector SFP+ Transceiver Module
SKU: DWDM-SFP10G-32.68
Price: $1,071.76
DWDM-SFP-3268 - Cisco Single-Mode 1Gbps 1000Base-DWDM Fiber 80km 1532.68nm Duplex LC Connector SFP Transceiver Module
SKU: DWDM-SFP-3268
Price: $1,147.54
DWDM-GBIC-1532.68 - Cisco 1.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1532.68nm SC Connector GBIC Transceiver Module
SKU: DWDM-GBIC-1532.68
Price: $3,144.07
DWDM-XENPAK-32.68 - Cisco 10Gbps 10GBase-DWDM Single-Mode Fiber 80km 1532.68nm Duplex SC Connector XENPAK Transceiver Module
SKU: DWDM-XENPAK-32.68
Price: $3,836.14
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.