Replacement for FWLF-1631-55: Drop-In Alternatives We Stock
Looking for a replacement for the FWLF-1631-55 (FWLF-1631-55 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1533.47nm 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-1631-55
| SKU | FWLF-1631-55 |
|---|---|
| Product | FWLF-1631-55 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1533.47nm SFP Transceiver Module |
| Current price | $1,222.64 |
| Stock status | In Stock |
| Detail page | View FWLF-1631-55 › |
Drop-in replacements for FWLF-1631-55
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-1631-27 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1555.75nm SFP Transceiver Module
SKU: FWLF-1631-27
Price: $1,222.64
FWLF-1631-23 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1558.98nm SFP Transceiver Module
SKU: FWLF-1631-23
Price: $1,222.64
FWLF-1631-32 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1551.72nm SFP Transceiver Module
SKU: FWLF-1631-32
Price: $1,222.64
FWLF-1631-31 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1552.52nm SFP Transceiver Module
SKU: FWLF-1631-31
Price: $1,222.64
FWLF-1631-33 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1550.92nm SFP Transceiver Module
SKU: FWLF-1631-33
Price: $1,222.71
FTR-1631-30 - Finisar 2.7Gbps DWDM Single-mode Fiber 160km 1553.33nm GBIC Transceiver Module
SKU: FTR-1631-30
Price: $168.78
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
FWLF1634RL31 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1552.52nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL31
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
FWLF1634RL60 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1529.55nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL60
Price: $1,826.84
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
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.