• Fortinet Compatible 100GB QSFP28 to 4x25GB SFP28 Breakout Cable 1M-5M
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Blue Cable Co

FN-CABLE-QSFP28-4SFP28-X-BCC | Fortinet Compatible 100GB QSFP to 4 x 25GB SFP25G Direct Attach Breakout Cable | 1M to 5M

FN-CABLE-QSFP28-4SFP28-1-BCC

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$229.00 ex. GST
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Description

The FN-CABLE-QSFP28-4SFP28-X-BCC is a drop-in compatible replacement for the Fortinet FN-CABLE-QSFP28-4SFP28 series. This passive copper breakout cable provides plug-and-play 100G to 4x25G connectivity in Fortinet systems with QSFP28 and SFP28 slots. - Compliant with 25GBASE-CR standard, guaranteeing interoperability between 100G QSFP28 and 25G SFP28 interfaces - 1x QSFP28 to 4x SFP28 form factor with passive twinax copper construction for power-efficient operation under 0.1W per end - Supports 100Gbps aggregate data rate (4x 25Gbps independent channels) over distances up to 5 meters depending on cable length - Extended operating temperature range of -40°C to 85°C for demanding deployment environments - Hot-pluggable design with 30mm minimum bend radius for flexible rack and cross-rack installations - Available in 1M, 3M, and 5M lengths to suit intra-rack and adjacent-rack topologies

Features

• Four independent 25Gbps channels operate simultaneously over passive copper, enabling flexible lane allocation between 100G uplinks and 25G server or switch connections without active components
• 25GBASE-CR compliance ensures IEEE 802.3bj standards adherence for electrical signaling, guaranteeing link integrity across multi-vendor 100G and 25G Ethernet infrastructure
• Passive twinax architecture eliminates power consumption beyond connector circuitry (under 0.1W per end), reducing heat generation and enabling dense port configurations without thermal constraints
• Extended -40°C to 85°C operating range supports ruggedized Fortinet deployments and thermally challenging environments where standard 0°C to 70°C cables cannot operate reliably
• Hot-swap capability allows live insertion and removal without disrupting adjacent links, critical for maintaining uptime during moves, adds, and changes in production networks
• 30mm bend radius specification permits tight routing in high-density racks while maintaining signal integrity across all four differential pairs throughout the twinax bundle
• Each SFP28 leg operates independently at up to 25Gbps, allowing mixed-speed deployments where some lanes run at lower rates (10G, 1G) while others utilize full 25G capacity

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

FAQs

Compatible SFP Selector

Technical Specifications

Brand: Blue Cable Co
BCC SKU: FN-CABLE-QSFP28-4SFP28-xM-BCC
Compatible Replacement For: FN-CABLE-QSFP28-4SFP28-1
Compatibility: Fortinet compatible
Lab Testing: Tested in Sydney, Australia
Warranty: 5-year advanced hardware replacement (Blue Cable Co)
Form Factor: 1x QSFP28 to 4x SFP28 breakout
Data Rate: 1x 100Gbps or 4x 25Gbps
Protocol Standard: 25GBASE-CR
Cable Type: Passive twinax copper
Module Type: Transceivers included at both ends
Power Dissipation: < 0.1W per end
Operating Temperature: -40°C to 85°C
Hot-Pluggable: Yes
Bend Radius: 30mm minimum
Cable Diameter: 4.83mm
Compliance: RoHS
Available Lengths: 1M, 3M, 5M

FAQs

Q: Will this work in place of the Fortinet FN-CABLE-QSFP28-4SFP28-1, -3, or -5?
A: Yes. This cable is engineered to the same 25GBASE-CR standard with identical QSFP28 to 4x SFP28 form factor, 100G aggregate data rate, and passive twinax construction. It provides plug-and-play compatibility with Fortinet systems requiring the FN-CABLE-QSFP28-4SFP28 series, supporting both 100G QSFP28 and 25G SFP28 port configurations.

Q: Which Fortinet platforms support this breakout cable?
A: This cable works in Fortinet systems with QSFP28 or QSFP+ slots on one end and SFP28 or SFP+ slots on the other. The QSFP28 end requires a 100G-capable port, while the four SFP28 ends require 25G-capable ports (backward compatible with 10G and 1G SFP+ ports for reduced-rate operation).

Q: Can I run each of the four 25G channels at different speeds?
A: Yes, each SFP28 lane operates independently. The four channels can negotiate different rates (1G, 10G, or 25G) based on the connected device capability. The QSFP28 host port sees the aggregate bandwidth, so mixing a 25G, two 10G, and one 1G connection would present as 56G total to the QSFP28 interface.

Q: What is the maximum distance for passive copper breakout cables versus active optical?
A: This passive copper design supports up to 5 meters with the electrical signal propagating directly through copper pairs. For distances beyond 5 meters, an active optical breakout cable is required, as passive copper experiences excessive attenuation and crosstalk at 25Gbps signaling rates over longer runs.

Q: Does the extended temperature range affect signal quality or require special handling?
A: No special handling is required. The -40°C to 85°C rating reflects the cable's design for ruggedized environments, not a trade-off in performance. Twinax passive cables maintain consistent electrical characteristics across temperature because they rely on copper impedance rather than temperature-sensitive active components, making them more stable than transceiver-based solutions in thermal extremes.

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100% compatible with equipment from major vendors

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

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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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