Wi-Fi is fine for checking email. It's not fine when the 4 GB file transfer stalls at 87% or your video call pixelates mid-sentence. This little adapter slots into any USB-A port and gives you a hard-wired 1 Gigabit Ethernet connection. No fiddling with drivers on Windows 8+ or macOS 10.9+. Auto-negotiates 10/100/1000, handles IPv4 and IPv6, and the crossover detection means you don't have to think about which end of the cable is which. 22 grams, 13 cm tail, lives in your laptop bag and disappears into a USB slot when you need it. Powered straight from the port – no extra brick
| brand | SIMPLECOM |
| model | NU302 |
| usb_connector | USB-A |
| usb_standard | USB 3.2 Gen 1 (USB 3.0) |
| network_interface | RJ-45 Ethernet |
| transfer_rate | 10 / 100 / 1000 Mbps, auto-negotiation |
| standards | IEEE 802.3, 802.3u, 802.3ab, 802.3az, 802.1p, 802.1q |
| wake_on_lan | Yes |
| cable_length | 13 cm |
| dimensions | 6.6 × 2.3 × 1.4 cm |
| weight | 22 g |
| material | ABS plastic |
| operating_temperature | 0 – 45 °C |
| power_rating | 1 W (USB bus-powered) |
| os_compatibility | Windows 8+, macOS 10.9+ |