Product Specifications
| Item | Specification |
| Compliance | RoHS |
| Cable Shape | Round |
| Conductor | Tinned copper |
| Flame Rating | Flame retardant |
| Cable Type | Twisted pair, fully shielded |
| Gender | Female to female on both ends |
| Brand | TE Connectivity, GEMnet series |
| Connector P/N | 2386629-1, 4 cavity female, black housing |
| Product Type | Quad port 10G Ethernet extension harness |
| Use Environment | In vehicle electronic equipment and R and D bench |
| Channels | 4 independent 10G Ethernet channels per connector |
| Cable | GG 2SPEED R 251, 10G shielded automotive Ethernet |
| Length Options | 0.5 m, 1 m, 1.5 m, 2 m, 3 m, 4 m, 5 m, custom on request |
| Release Latch | Red on one end, purple on the other for service identification |
| Data Rate | Up to 10 Gbps per channel, multi gigabit automotive Ethernet |
Available Configurations

TE GEMnet 10G Automotive Ethernet Cable
This harness is a female to female extension of the TE GEMnet quad port connector, the same black 4 cavity housing used on zonal and domain controllers.
One end is keyed with a red release latch and the other with a purple release latch, so that when the harness is installed in a vehicle the technician can tell which end goes to the body bulkhead and which goes to the ECU without reading a label.
Both ends carry four independent 10 Gigabit Ethernet channels, and the gold plated contacts inside each cavity mate directly to the corresponding contacts on a factory GEMnet male pigtail or panel receptacle.
Quad Port Female to Female Ethernet Cable
The cable is GG 2SPEED R 251, a fully shielded 10G twisted pair line with a round black jacket, sized to preserve the 100 ohm differential impedance on all four channels end to end.
Because the harness is factory terminated as one assembly rather than four loose jumpers, there are four fewer mated pairs on the vehicle and four fewer potential points of failure.
Available in 7 lengths from 0.5 m for bench jumps to 5 m for trunk to cabin routing, every assembly is continuity and shielding tested before dispatch.

Applications
| Application | How It Is Used | What It Enables |
| Bulkhead to bulkhead production harness | Bridge two GEMnet quad panel receptacles in a prototype or low volume vehicle. | Four channels through one panel cut out, no loose pigtails. |
| ECU relocation extension | Extend the factory GEMnet quad pigtail when the domain controller moves to a deeper pocket or trunk box. | No cutting into the factory harness, all four channels stay shielded. |
| Four sensor aggregation | Run four 10G camera or radar channels from a quad bulkhead to a quad ECU port. | One mated pair on each end instead of four separate connectors. |
| Zonal domain controller bench bring up | Mount one GEMnet quad female to the test fixture, the other to the domain controller, and bring up all four 10G channels at once. | One certified jumper instead of four hand built cables that fail impedance tests. |
| R and D vehicle wiring | Use as a repeatable certified jumper between GEMnet equipped modules during architecture testing. | Reduces bench setup time and keeps signal integrity consistent across tests. |
Closing line: because all four 10G channels run through factory terminated GEMnet connectors on the same shielded GG 2SPEED 251 cable, the link stays sealed and impedance matched end to end, and the red and purple latches make every mating visually self checking.
Professional Services
Engineering docs: datasheet, mating part list and cable drawing available on request.
Fast sampling: small batch samples in days, production volumes on a confirmed lead time.
Length customization: 0.5 m to 5 m in stock. Non standard long runs built to your drawing.
Configuration customization: female to female as shown. Other gender combinations and port counts quoted on request.
Quality before dispatch: 100 percent per channel continuity and shielding continuity tested on every assembly before dispatch.
OEM and bulk support: zonal ECU developers, ADAS integrators and R and D labs get volume pricing and private label packaging.
Product FAQ
Q1: What data rate does it support?
Up to 10 Gbps per channel over the GG 2SPEED R 251 fully shielded twisted pair, built for multi gigabit automotive Ethernet in zonal and domain controller architectures.
Q2: Is this a genuine TE GEMnet connector?
Yes. The quad port female housing is genuine TE GEMnet, part number 2386629-1, black housing with four cavities. The cable is GG 2SPEED R 251 fully shielded 10G automotive Ethernet.
Q3: Can you make custom lengths or gender combinations?
Yes. We support custom lengths from 0.5 m to 5 m and beyond, and can quote other GEMnet gender and port combinations on request. Send us your connector photos and target length, and we will quote the matching assembly.
Q4: Why are the two latches different colors?
One end has a red release latch and the other has a purple release latch. This is a service aid: technicians can tell the vehicle side from the device side at a glance without reading a label, reducing mis mating during assembly and service.
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