Alternative to FWLF-1631-21: Better-Value Equivalents in Stock
Comparing the FWLF-1631-21 (FWLF-1631-21 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1560.61nm 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-1631-21
| SKU | FWLF-1631-21 |
|---|---|
| Product | FWLF-1631-21 - Finisar 2.7Gbps DWDM Single-mode Fiber 80km 1560.61nm SFP Transceiver Module |
| Current price | $1,240.33 |
| Stock status | In Stock |
| Detail page | View FWLF-1631-21 › |
Alternatives to FWLF-1631-21
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.
FWLF1634RL21 - Finisar 4.25Gbps 1000Base-ZX DWDM Single-mode Fiber 80km 1560.61nm Duplex LC Connector SFP Transceiver Module
SKU: FWLF1634RL21
Price: $1,826.84
DWDM-SFP-4214-RF - Cisco 1Gbps 1000Base-DWDM Single-mode Fiber 80km 1542.14nm Duplex LC Connector SFP Transceiver Module
SKU: DWDM-SFP-4214-RF
Price: $1,551.25
FWLF163121 - Finisar 2.70Gbps OC-48 DWDM Single-Mode Fibre 80km 1560.61nm LC Connector SFP Transceiver Module
SKU: FWLF163121
Price: $1,249.24
FTRJ1321P1BTL - Finisar 2.67Gbps OC-48 SR/STM I-16 Single-mode Fiber 80km 1310nm Duplex LC Connector SFP Transceiver Module
SKU: FTRJ1321P1BTL
Price: $97.14
FWLF1621P2T57 - Finisar 2.67Gbps OC-48 CWDM Single-mode Fiber 80km 1571nm Duplex LC Connector Hot-pluggable SFP Transceiver Module
SKU: FWLF1621P2T57
Price: $1,233.18
FTLX4213M3BCL - Finisar 10Gbps DWDM 10GBase-ZR Single-Mode Fiber 120km 1550nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX4213M3BCL
Price: $4,999.83
FTLX3613M321 - Finisar 10Gbps 10GBase-DWDM Single-mode Fiber 40km 1560.61nm Duplex LC Connector XFP Transceiver Module
SKU: FTLX3613M321
Price: $5,411.88
10-2321-02 - Cisco Single-mode 10Gbps 10GBase-DWDM OC-192/STM-64 Fiber 80km 1551.72nm Duplex LC Connector XFP Transceiver Module
SKU: 10-2321-02
Price: $249.39
100-02163-ACC - Accortec 10Gbps 10GBase-DWDM Single-mode Fiber 80km 1548.51nm Duplex LC Connector XFP Transceiver Module
SKU: 100-02163-ACC
Price: $271.16
GP-XFP-W21-ACC - Accortec 10Gbps 10GBase-DWDM Single-mode Fiber 80km 1560.61nm Duplex LC Connector XFP Transceiver Module
SKU: GP-XFP-W21-ACC
Price: $3,015.14
100-02146-ACC - Accortec 10Gbps 10GBase-DWDM Single-mode Fiber 80km 1554.13nm Duplex LC Connector XFP Transceiver Module
SKU: 100-02146-ACC
Price: $3,136.75
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.