Alternative to FWLF-1631-37: Better-Value Equivalents in Stock
Comparing the FWLF-1631-37 (FWLF-1631-37 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1547.72nm SFP Transceiver Module) against alternatives? Pro Disk Network stocks 12 similar parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the FWLF-1631-37
| SKU | FWLF-1631-37 |
|---|---|
| Product | FWLF-1631-37 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1547.72nm SFP Transceiver Module |
| Current price | $1,222.64 |
| Stock status | In Stock |
| Detail page | View FWLF-1631-37 › |
Alternatives to FWLF-1631-37
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.
FWLF1634RL50 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1537.40nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL50
Price: $1,826.84
FWLF1634RL37 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1547.72nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL37
Price: $1,826.84
DWDM-SFP-4373 - Cisco 1.25Gb/s 1000Base-DWDM Single-Mode Fiber 80km 1543.73nm LC Connector SFP Transceiver Module
SKU: DWDM-SFP-4373
Price: $1,147.54
10-2379-02 - Cisco DWDM-XFP-35.82 10Gbps 10GBase-DWDM Single-mode Fiber 80km 1535.82nm Duplex LC Connector XFP Transceiver Module
SKU: 10-2379-02
Price: $2,243.04
FTLX3613M350 - Finisar 10Gbps 10GBase-DWDM Single-mode Fiber 40km 1537.40nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3613M350
Price: $5,750.12
FTLX3613M337 - Finisar 10Gbps 10GBase-DWDM Single-mode Fiber 40km 1547.72nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3613M337
Price: $5,750.12
1442482G8C - ADTRAN 10Gbps 10GBase-DWDM Single-mode Fiber 1547.72nm Channel 37 80km LC Connector SFP+ Transceiver
SKU: 1442482G8C
Price: $1,725.11
10-2495-01 - Cisco 4Gbps 4GBase-DWDM Fibre Channel Single-mode Fiber 80km 1537.40nm LC Connector SFP Transceiver Module
SKU: 10-2495-01
Price: $4,234.61
XFP-10GB-DW50-80-ACC - Accortec 10Gb/s 10GBase-DWDM Single-mode Fiber 80km 1537.40nm LC Connector XFP Transceiver Module
SKU: XFP-10GB-DW50-80-ACC
Price: $6,531.59
NTK587AYE5-ACC - Accortec 10Gb/s 10GBase-DWDM Single-Mode Fiber 80km 1537.40nm LC Connector XFP Transceiver Module for Ciena Compatible
SKU: NTK587AYE5-ACC
Price: $6,689.93
NTK588AYE5-ACC - Accortec 10Gb/s 10GBase-DWDM Single-Mode Fiber 80km 1537.40nm LC Connector XFP Transceiver Module for Ciena Compatible
SKU: NTK588AYE5-ACC
Price: $6,689.93
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.