• Cisco Compatible QSFP-40G-SR4 40GBASE-SR4 transceiver module
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Blue Cable Co

QSFP-40G-SR4-BCC | Cisco Compatible 40GB Multi-Mode 150m (40GBASE-SR4)

QSFP-40G-SR4-BCC

18 in stock

$212.30 inc. GST
$193.00 ex. GST
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Description

The QSFP-40G-SR4-BCC is a drop-in compatible replacement for the Cisco QSFP-40G-SR4. This QSFP+ transceiver provides plug-and-play 40 Gigabit Ethernet connectivity over multi-mode fiber in Cisco platforms. - IEEE 802.3ba 40GBASE-SR4 compliance ensures interoperability with all standard 40GBASE-SR4 interfaces and enables 4x10G breakout mode to 10GBASE-SR ports - QSFP+ form factor with 850nm VCSEL array operating over 12-fiber MPO/MTP connector, delivering 40 Gbps aggregate bandwidth across four independent 10 Gbps lanes - Reaches 100 meters over OM3 multi-mode fiber and 150 meters over OM4 or OM5 multi-mode fiber - Digital diagnostic monitoring (DOM) support via I2C interface provides real-time access to transmit and receive optical power, temperature, laser bias current, and supply voltage per lane - Hot-swappable design supports 0 to 70 degrees Celsius commercial operating temperature range - Optimized transmit and receive characteristics prevent receiver overload when used in 4x10G breakout applications with external parallel-to-duplex fiber breakout cables

Features

• IEEE 802.3ba 40GBASE-SR4 compliance guarantees full interoperability with IEEE-compliant 40G interfaces and enables 4x10G breakout mode using external parallel-to-duplex cables for connectivity to 10GBASE-SR ports
• Four independent 10 Gbps optical lanes per direction use 850nm VCSEL transmitters and PIN photodiode receivers to deliver aggregate 40 Gbps throughput over parallel multi-mode fiber
• 1.9 dB link budget supports 100 meters over OM3 fiber and extends to 150 meters over OM4 or OM5 fiber, calculated per IEEE specifications assuming standard connector and splice losses
• Hot-swappable QSFP+ form factor with MPO/MTP-12 female connector interface allows in-service installation and removal without disrupting adjacent ports or requiring system shutdown
• Per-lane DOM telemetry accessible via I2C serial interface enables proactive monitoring of transmit power, receive power, temperature, bias current, and supply voltage for each of the four optical channels
• Optimized optical power levels prevent receiver saturation and alarm threshold violations when operating in 4x10G breakout configurations while maintaining full interoperability with all standard 40GBASE-SR4 equipment
• QSFP+ MSA SFF-8436 mechanical and electrical compliance ensures compatibility with standard QSFP+ cages, connectors, and host electrical interfaces across multi-vendor platforms

Warranty

5-Year Advanced Warranty on All Blue Cable Co® Products

Blue Cable Co® offers a comprehensive 5-Year Advanced Warranty on all our branded products. Our advanced warranty ensures fast, hassle-free replacements to keep your network running smoothly. If a fault occurs, we’ll deliver a replacement part before you return the faulty item—minimising downtime and giving you complete peace of mind.

Choose Blue Cable Co® for reliable, high-quality network components backed by industry-leading warranty support.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

Also Known As

FAQs

Compatible SFP Selector

Technical Specifications

Brand: Blue Cable Co
BCC SKU: QSFP-40G-SR4-BCC
Compatible Replacement For: QSFP-40G-SR4
Compatibility: Cisco compatible
Lab Testing: Tested in Sydney, Australia
Warranty: 5-year advanced hardware replacement (Blue Cable Co)
Form Factor: QSFP+
Data Rate: 40 Gbps (4 x 10 Gbps lanes)
Wavelength: 850nm
Fibre Type: Multi-mode (OM3, OM4, OM5)
Connector Type: MPO/MTP-12 female
DOM Support: Yes (Digital Diagnostic Monitoring via I2C)
Standards: IEEE 802.3ba 40GBASE-SR4, QSFP+ MSA SFF-8436
Max Reach: 100m on OM3, 150m on OM4/OM5 (per IEEE 802.3ba, subject to fibre and link conditions)
Operating Temperature: 0 to 70°C (commercial)
Transmitter Type: 850nm VCSEL array (4 lanes)
Receiver Type: PIN photodiode array (4 lanes)
Link Budget: 1.9 dB (typical)
Optical Interface: Parallel optics (4 transmit, 4 receive channels)

Also Known As

QSFP-40G-SR4=

FAQs

Q: Will this work in place of the Cisco QSFP-40G-SR4?
A: Yes. The QSFP-40G-SR4-BCC is a plug-and-play drop-in replacement for the Cisco QSFP-40G-SR4. It conforms to the same IEEE 802.3ba 40GBASE-SR4 standard, uses the same QSFP+ form factor with MPO/MTP connector, operates at the same 850nm wavelength over four parallel lanes, and delivers identical 40 Gbps data rate and reach specifications (100m on OM3, 150m on OM4/OM5).

Q: Which Cisco platforms support this transceiver?
A: This transceiver is compatible with Cisco switches, routers, and other network equipment featuring QSFP+ ports that support 40GBASE-SR4 optics. It operates in any Cisco platform with a standard QSFP+ cage and multi-mode fiber infrastructure. The module also supports 4x10G breakout configurations when the host platform firmware enables lane breakout functionality.

Q: Can I use this module in 4x10G breakout mode to connect to 10GBASE-SR ports?
A: Yes. This transceiver supports 4x10G breakout mode using an external 12-fiber parallel-to-duplex fiber breakout cable. Each of the four 10 Gbps lanes can connect to a separate 10GBASE-SR SFP+ port over duplex multi-mode fiber, reaching 100 meters on OM3 or 150 meters on OM4. The transmit and receive optical characteristics are optimized to prevent receiver overload and alarm triggering on standard 10GBASE-SR interfaces while maintaining full 40GBASE-SR4 interoperability.

Q: What is the difference in reach between OM3 and OM4 fiber for this module?
A: The module reaches 100 meters over OM3 fiber and extends to 150 meters over OM4 or OM5 fiber. This difference is due to the lower modal bandwidth and higher attenuation of OM3 compared to OM4/OM5 at the 850nm wavelength. Both reach specifications assume a 1.9 dB link budget and account for fiber attenuation, connector losses, and splice losses per IEEE 802.3ba. Using OM4 or OM5 provides 50 percent additional reach for the same 40GBASE-SR4 application.

Q: Does this transceiver support per-lane optical power monitoring?
A: Yes. The module provides per-lane digital diagnostic monitoring (DOM) accessible via the I2C interface as defined by the QSFP+ MSA SFF-8436 specification. You can monitor transmit optical power, receive optical power, laser bias current, temperature, and supply voltage independently for each of the four optical lanes. This allows granular visibility into individual lane performance and simplifies troubleshooting when diagnosing asymmetric link issues or identifying degraded lanes in parallel optical links.

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100% compatible with equipment from major vendors

Coded and tested in our state of the art lab in Sydney

Cisco sfp-10g-sr transceiver module with metallic housing and a white label displaying serial number, model details, and regulatory markings.
Silver-colored sfp-10g-sr-bcc transceiver module with a white label featuring blue and black text, designed for 850nm wavelength optical communication.
Blue Cable Co
Cisco

Tested on real vendor hardware in Sydney

Every Blue Cable Co transceiver is coded for your platform and tested in our Sydney test rack on real vendor switches and firewalls before it ships. We check it is recognised and links up the same way the OEM optic does, so you don't find an "unsupported transceiver" error after it's installed.

Brands tested: Cisco, Meraki, Arista, Aruba, HPE, Juniper, Dell, Fortinet, Palo Alto, Check Point, Sophos, Moxa and NVIDIA. Speeds up to 100Gb.

  • 5 year replacement warranty
  • Sydney stock
  • Re-coding if you need it

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