United StatesCisco 40G Optical Modules Powering Performance
Experience enhanced network reliability with Cisco 40G Optical Modules designed for high-speed data centers and mission-critical operations, ensuring superior bandwidth and advanced infrastructure connectivity.
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13 Matching results
- BEST SELLING
QSFP-40G-CSR4 (QSFP 4x10GBASE-SR Transceiver Module, MPO, 300M)
4.7 (7)- Transceiver
- QSFP
- 40G
- LC
- 850nm
- Short-Range
- Multi-mode
Est Value
$3,534.00$636.00
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- BEST SELLING
QSFP-40G-LR4-S (QSFP 40GBASE-LR4 Trnscvr Mod. LC. 10km. Enterprise-Class)
4.6 (7)- Transceiver
- QSFP
- 40G
- LC
- 1310 nm
- Long-Range
- Single-mode
Est Value $12,860.00$713.00
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QSFP-40G-SR-BD= (SPARE QSFP40G BIDI SHORTREACH TRANSCEIVER)
4.4 (7)- Transceiver
- QSFP
- 40G
- LC
- 850nm
- Short-Range
- Multi-mode
Est Value $1,292.00$145.00
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QSFP-40G-CSR4= (4X10GBASE-SR QSFP TRANSCEIVER MODULE MPO 300M)
4.7 (7)- Transceiver
- QSFP
- 40G
- LC
- 850 nm
- Short-Range
- Multi-mode
Est Value $3,534.00$629.00
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CVR-CFP-4SFP10G= (CFP to SFP10G Adapter module)
4.9 (7)- Transceiver
- CFP
- 10G
- LC
- N/A
- Short-Range
- N/A
Est Value $1,000.00$677.00
32.3% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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QSFP-40G-BD-RX= (QSFP40G BIDI-MONITOR SHORT REACH TRANSCEIVER FOR DATA BROKER)
4.7 (7)- Transceiver
- QSFP
- 40G
- LC
- 850nm
- Short-Range
- Multi-mode
Est Value $1,292.00$680.00
47.4% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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QSFP-40G-LR4-S= (QSFP 40GBASE-LR4 TRNSCVR MOD LC 10KM ENTERPRISE CLASS)
4.7 (7)- Transceiver
- QSFP
- 40G
- LC
- 1310 nm
- Long-Range
- Single-mode
Est Value $12,860.00$713.00
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QSFP-40G-CSR-S= (40GBASE-CSR QSFP TRANSCEIVER MO W/LC CONNECTOR)
4.9 (7)- Transceiver
- QSFP
- 40G
- LC
- 850nm
- Short-Range
- Multi-mode
Est Value $2,354.00$747.00
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CFP-40G-SR4= (40GBASE-SR4 CFP MODULE WITH MPO CONNECTOR)
4.1 (7)- Transceiver
- CFP
- 40G
- LC
- 850 nm
- Short-Range
- Multi-mode
Est Value $3,995.00$842.00
78.9% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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CFP-40G-LR4= (40GBASE-LR4 CFP MODULE)
4.4 (7)- Transceiver
- CFP
- 40G
- LC
- 1310nm
- Long-Range
- Single-mode
Est Value $13,995.00$2,702.00
80.7% offFirst-Time Buyer Discount – Get up to 2% additional off on your first order
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QSFP-40GE-LR4 (QSFP 40GBASE-LR4 Transceiver Module, LC, 10KM)
4.6 (7)- Transceiver
- QSFP+
- 40G
- LC
- 1310 nm
- Long-Range
- Single-mode
Est Value $13,995.00$3,309.00
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CFP-40G-FR= (CFP 40GBASE-FR optical transceiver module)
4.9 (7)- Transceiver
- CFP
- 40G
- LC
- 1310nm
- Long-Range
- Single-mode
Est Value $60,000.00$12,399.00
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QSFP-40GE-LR4-S (40GBASE-LR4 QSFP+ transceiver module for SMF, duplex LC connector, 10 km reach)
4.9 (7)- Transceiver
- QSFP
- 40G
- LC
- 1271/1294/1318/1341 nm
- Long-Range
- Single-mode
Est Value First-Time Buyer Discount – Get up to 2% additional off on your first order
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Questions & Answers
What are Cisco 40G Optical Modules?
Cisco 40G Optical Modules are hot-pluggable QSFP transceivers designed to enable 40 Gigabit Ethernet connectivity over multimode or single-mode fiber in Cisco switching and routing platforms.
Which Cisco 40G Optical Module models are available?
Cisco offers QSFP-40G-SR4 for short-reach multimode, QSFP-40G-LR4 for up to 10 km SMF, QSFP-40G-ER4 for up to 40 km SMF, and QSFP-40G-UNIV for dual-rate support.
What is the difference between QSFP-40G-SR4 and QSFP-40G-LR4?
QSFP-40G-SR4 uses 850 nm VCSEL over OM3/OM4 fiber for distances up to 150 m/400 m, while QSFP-40G-LR4 uses 1310 nm DWDM over single-mode fiber for distances up to 10 km.
How far can Cisco 40G Optical Modules transmit data?
Distance depends on model: SR4 supports up to 150 m on OM3 and 400 m on OM4, LR4 up to 10 km, and ER4 up to 40 km over single-mode fiber.
Are Cisco 40G Optical Modules compatible with non-Cisco switches?
Cisco 40G Optical Modules are coded for Cisco platforms; third-party compatibility is not guaranteed and may require switch firmware or vendor approval.
Which connector types do Cisco 40G Optical Modules use?
Cisco 40G Optical Modules use MPO/MTP connectors for SR4 models and LC duplex connectors for LR4 and ER4 models.
Do Cisco 40G Optical Modules support Digital Diagnostic Monitoring (DDM)?
Yes, all Cisco 40G Optical Modules support DDM, providing real-time monitoring of optical power, temperature, voltage, and laser bias current via the SFF-8436 interface.
Can Cisco 40G Optical Modules perform 40G to 4×10G breakout?
Yes, Cisco supports breakout configurations on select platforms using QSFP-40G-SR4 or QSFP-40G-LR4 modules with compatible 4×10G fan-out cables.
How do I install a Cisco 40G Optical Module?
Power off the port or follow hitless insertion procedures, align the module with the QSFP cage, press until it latches, then restore link and verify port status.
How do I troubleshoot a Cisco 40G Optical Module link?
Verify fiber type, cable polarity, SFP status via show interface transceiver detail, check DDM diagnostics for power or temperature alarms, and inspect connectors.
What wavelength do Cisco 40G Optical Modules operate on?
QSFP-40G-SR4 operates at 850 nm, QSFP-40G-LR4 at 1310 nm with four 25 Gbps channels, and QSFP-40G-ER4 at 1310 nm with extended reach DWDM wavelengths.
What is the power consumption of Cisco 40G Optical Modules?
Typical power consumption ranges from 1.5 W for SR4 modules to 3.5 W for LR4/ER4 modules, depending on model and operating conditions.
What temperature range do Cisco 40G Optical Modules support?
Cisco 40G Optical Modules support commercial (0 °C to 70 °C) and industrial (–40 °C to 85 °C) temperature ranges depending on model.
How do I verify my Cisco 40G Optical Module firmware?
Use the CLI command show hw-module subslot / transceiver details or show interface transceiver to display firmware version and compatibility status.
What is the warranty for Cisco 40G Optical Modules?
Cisco 40G Optical Modules carry a limited lifetime warranty when purchased through Cisco or authorized partners, covering defects in materials and workmanship.
How do I order Cisco 40G Optical Modules and check pricing?
Order via Cisco’s ordering portal or authorized resellers using the part number (e.g., QSFP-40G-SR4), then check list pricing in Cisco Commerce Workspace or partner catalogs.