JST GH Ethernet Cable – 4-Pin to 4-Pin - 100Mbit

This 100Mbit Ethernet cable is designed for direct point-to-point Ethernet connections between two embedded systems using JST GH 4-pin connectors (1.25 mm pitch). It implements a straight-through pinout, making it ideal for internal system links in drones, robotics, or compact networked devices with onboard Ethernet PHYs. Technical Overview Ethernet Standard: 100BASE-TX (IEEE 802.3u) Data Rate: 100 Mbit/s Length: 50mm - 1000mm Connectors: JST GH 4-pin to JST GH 4-pin (same orientation, straight-through) Cable Type: Unshielded, 4-wire; twisted TX and RX differential pairs PoE: Not supported Impedance Matching: Not controlled — suitable for short distances (<30 cm) in low-noise environments Pin Mapping and Wire Colors Signal JST GH Pin (End A) JST GH Pin (End B) Wire Color RX+ 1 1 White RX− 2 2 Red TX− 3 3 Green TX+ 4 4 White RX (R+ and R−) and TX (T+ and T−) pairs are individually twisted to reduce intra-pair skew and noise coupling No crossover: wiring is 1:1, designed for Ethernet PHYs with mirrored I/O routing Applications Direct Ethernet communication between two embedded boards Internal Ethernet wiring in drones, UAV subsystems, or robotic platforms PHY-to-PHY prototyping or debugging harness Compact system interconnects in custom devices Build Characteristics Lightweight and flexible cable jacket for constrained routing paths JST GH series compliant crimping Individually twisted signal pairs for RX and TX Continuity-tested and suited for lab use or small-scale production