Replacement for FWLF-1631-33: Drop-In Alternatives We Stock
Looking for a replacement for the FWLF-1631-33 (FWLF-1631-33 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1550.92nm 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-1631-33
| SKU | FWLF-1631-33 |
|---|---|
| Product | FWLF-1631-33 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1550.92nm SFP Transceiver Module |
| Current price | $1,222.71 |
| Stock status | In Stock |
| Detail page | View FWLF-1631-33 › |
Drop-in replacements for FWLF-1631-33
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.
FWLF-1631-55 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1533.47nm SFP Transceiver Module
SKU: FWLF-1631-55
Price: $1,222.64
FTR-1631-30 - Finisar 2.7Gbps DWDM Single-mode Fiber 160km 1553.33nm GBIC Transceiver Module
SKU: FTR-1631-30
Price: $168.78
FTLX3811M359 - Finisar 10Gbps DWDM 10GBase-X Single-mode Fiber 80km 1530.33nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3811M359
Price: $548.63
FWLF1634RL30 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1553.33nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL30
Price: $1,826.84
FWLF1634RL33 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1550.92nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL33
Price: $1,826.84
FWLF1634RL55 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1533.47nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL55
Price: $1,826.84
FWLF1634RL59 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1530.33nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL59
Price: $1,826.84
Cisco DWDM-SFP10G-30.33 Single-Mode 10Gbps 10GBase-DWDM Fiber 80km 1530.33nm Duplex LC Connector SFP+ Transceiver Module
SKU: DWDM-SFP10G-30.33
Price: $77.47
DWDM-SFP-5333 - Cisco 1.25Gbps 1000Base-DWDM Single-Mode Fiber 80km 1553.33nm LC Connector SFP Transceiver Module
SKU: DWDM-SFP-5333
Price: $1,240.33
DWDM-XFP-30.33 - Cisco Single-Mode 10Gbps 10GBase-DWDM Fiber 80km 1530.33nm Duplex LC Connector XFP Transceiver Module
SKU: DWDM-XFP-30.33
Price: $1,531.11
DWDM-GBIC-1530.33 - Cisco 1.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1530.33nm SC Connector GBIC Transceiver Module
SKU: DWDM-GBIC-1530.33
Price: $3,144.07
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.