The tp‐link ue300 is a compact and portable usb 3.0 → gigabit ethernet adapter designed for devices like ultrabooks, macbooks, chromebooks, and pcs that lack built-in lan ports.
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key specifications
•interface: usb 3.0 type-a (backward compatible with usb 2.0/1.1) → 10/100/1000 mbps rj45 ethernet 
•chipset: realtek rtl8153 
•data transfer: up to 1000 mbps over ethernet (actual speed may vary) 
•size: ~71 × 26 × 16 mm; foldable cable for easy storage 
•os support: plug‐and‐play on windows (xp–11), macos (10.9+), chrome os, linux; macos ≤10.8 needs drivers