Alternative to 40G-QSFP-LM4: Better-Value Equivalents in Stock
Comparing the 40G-QSFP-LM4 (40G-QSFP-LM4 - Brocade 40Gbps 40GBase-LM4 Single-mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Optical Transceiver Module) against alternatives? Pro Disk Network stocks 12 similar Brocade 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 40G-QSFP-LM4
| SKU | 40G-QSFP-LM4 |
|---|---|
| Product | 40G-QSFP-LM4 - Brocade 40Gbps 40GBase-LM4 Single-mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Optical Transceiver Module |
| Current price | $1,962.38 |
| Stock status | In Stock |
| Detail page | View 40G-QSFP-LM4 › |
Alternatives to 40G-QSFP-LM4
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.
40G-QSFP-LR4 - Brocade 40Gb/s 40GBase-LR4 Single-Mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Transceiver Module
SKU: 40G-QSFP-LR4
Price: $2,132.41
40G-QSFP-LR4-INT - Brocade 40Gb/s 40GBase-LR4 Single-Mode Fiber 10km 1310nm Duplex LC Connector QSFP+ Transceiver Module
SKU: 40G-QSFP-LR4-INT
Price: $4,267.71
40G-QSFP-ER4 - Brocade 40Gb/s 40GBase-ER4 Single-Mode Fiber 40km 1310nm Duplex LC Connector QSFP+ Transceiver Module
SKU: 40G-QSFP-ER4
Price: $1,026.32
100G-QSFP28-LR4-10KM - Brocade 100Gb/s 100GBase-LR4 Single-Mode Fiber 10km 1310nm Duplex LC Connector QSFP28 Transceiver Module
SKU: 100G-QSFP28-LR4-10KM
Price: $9,659.14
57-1000015-01 - Brocade 4Gb/s 4GBase-LX Single-Mode Fiber Longwave 10km 1310nm Fiber Channel Duplex LC Connector SFP Transceiver Module
SKU: 57-1000015-01
Price: $61.84
XBR-000198 - Brocade 16Gb/s Single-Mode Fiber Long wave 10km 1310nm Fiber Channel Duplex LC Connector SFP+ Transceiver for DCX 8510/ 6510/ 6505 Series S
SKU: XBR-000198
Price: $265.26
57-10000015-01 - Brocade 4Gb/s 4GBase-LX Single-Mode Fiber Longwave 10km 1310nm Fiber Channel Duplex LC Connector SFP Transceiver Module
SKU: 57-10000015-01
Price: $288.11
57-1000089-01 - Brocade 16Gbps Single-mode Fiber Longwave 10km 1310nm Fiber Channel Duplex LC Connector SFP+ Transceiver for DCX 8510/ 6510/ 6505 Series
SKU: 57-1000089-01
Price: $854.59
40G-QSFP-IR4 - Brocade 40GBase QSFP IR4 1km Four 10Gbps CWDM wavelengths: 1260 1360nm QSFP+ Transceiver
SKU: 40G-QSFP-IR4
Price: $2,621.51
40G-QSFP-SR-BIDI - Brocade 40Gb/s 40GBase-SR BiDi Multi-Mode Fibre 100m 850nm Duplex LC Connector QSFP+ Transceiver Module
SKU: 40G-QSFP-SR-BIDI
Price: $630.93
57-1000027-02 - Brocade 8Gb/s 8GBase-LR Single-Mode Fiber 10km 1310nm Duplex LC Connector SFP+ Transceiver Module
SKU: 57-1000027-02
Price: $65.26
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.