FN-CBL-100G-QSFP28-3M: Fortinet 100GbE QSFP28 Direct Attach Copper Cable 3m
Also listed as: SP-CBL-100GQSFP-3M, FG-CBL-100G-3M
The Fortinet FN-CBL-100G-QSFP28-3M is a 3-meter passive QSFP28 direct attach copper cable providing 100 Gigabit Ethernet connectivity within and between adjacent firewall racks.
Specifications
| Part number | FN-CBL-100G-QSFP28-3M |
|---|---|
| Brand | Fortinet |
| Type | Cables |
| Other numbers | SP-CBL-100GQSFP-3M, FG-CBL-100G-3M |
| Status | current |
| Form factor | QSFP28 |
| Speed | 100GbE |
| Connector | QSFP28 to QSFP28 |
| Cable type | Twinaxial passive copper |
| Max distance m | 3 |
About the FN-CBL-100G-QSFP28-3M
The Fortinet FN-CBL-100G-QSFP28-3M direct attach copper cable assembly delivers high density 100 Gigabit Ethernet connectivity for hyperscale data center firewalls and core security fabrics. Containing eight high speed twinaxial wire pairs supporting four 25Gbps full duplex transmission lanes, it offers an economical low latency solution for short-reach inter-device links.
Compatibility
Compatible with Fortinet FortiGate 1800F, 2600F, 3400E, 3600E, 4200F, 4400F, 4800F, 6000F, and 7000E firewalls equipped with QSFP28 ports. It connects core firewalls to data center spine switches without the added power consumption and cost of optical modules.
How to identify a genuine unit
Constructed with a heavy gauge black twinaxial cable jacket and durable metal QSFP28 connector housings. Both connector ends feature an integrated pull tab release latch and an adhesive identification label displaying Fortinet part number FN-CBL-100G-QSFP28-3M and serial number.
Buying used
Inspect the cable outer insulation for pinch points or sharp bends that could impair differential pair signal integrity. Verify that connector latching springs engage securely into firewall cages and check that FortiOS establishes link state immediately without reporting bit errors.
Fits these models
- Fortinet FortiGate 1800F
- Fortinet FortiGate 2600F
- Fortinet FortiGate 3000D
- Fortinet FortiGate 3200D
- Fortinet FortiGate 3300E
- Fortinet FortiGate 3400E
- Fortinet FortiGate 3600E
- Fortinet FortiGate 3700D
- Fortinet FortiGate 3800D
- Fortinet FortiGate 3960E
- Fortinet FortiGate 4200F
- Fortinet FortiGate 4400F
- Fortinet FortiGate 4800F
- Fortinet FortiGate 6000F
- Fortinet FortiGate 7000E
Check compatibility with Fortinet
Before you buy, confirm the exact configuration against the vendor's own lists: firmware levels, operating systems, adapters and optics that Fortinet has tested with the Fortinet FN-CBL-100G-QSFP28-3M.
- Specifications Fortinet Document Library (hardware guides and transceiver support)
- Support Fortinet Support
FAQ
What is the physical length of the FN-CBL-100G-QSFP28-3M cable?
It is exactly 3 meters in total length.
Does this cable support 100Gbps aggregate bandwidth?
Yes, it supports four differential copper channels operating at 25Gbps each for 100Gbps aggregate rate.
Buying or selling FN-CBL-100G-QSFP28-3M?
New, refurbished or used. Tell us the quantity and condition and we connect you with a vetted reseller in your region, usually within one working day.
Sources
- Fortinet Optical Transceivers Data Sheet, checked 2026-10-27