1. Comply with IEEE 802.3, IEEE 802.3u, and IEEE 802. standards; 2. Full-duplex adopts IEEE 802.3x standard, half-duplex adopts Backpressure standard; 3. 4 10/100M adaptive pin network ports, support port auto flip(Auto /MDIX) 4. Each port supports auto-negotiation and automatically adjusts the transmission mode and transmission rate; 5. Support address self-learning; Support full speed forwarding communication without blocking; Mini size design, 38x38MM (length x width); Dynamic LED indicator to provide simple working status prompts and troubleshooting; Power supply supports 5-12V input; Specification:180 Degrees Color: As Shown Material: PC Package Contents: 1 x 38mm industrial Ethernet switch module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.