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UGREEN US121 is a bus-powered extension cable that can be used to extend your USB devices、 like USB printers、 speakers、 scanners、 keyboards、 wifi etc. up to 10-30m without significant signal loss or degradation in quality. 

Tips: The DC-Jack on USB A Female connector of 25m and 30m is optional for power.

Item Code
10M-10321

Specification
  1. Built-in chipset assures good signal quality to meet USB specification
  2. Extend your USB devices up to 10m-30m
  3. Compliant with USB specification 2.0/1.1
  4. USB bus powered、 no external power required
  5. Plug & Play、 no driver needed
  6. Support Win98/2000/XP/Vista/7/8、 Mac os V9.0 or higher
  7. Tinned copper + double shileding
  8. DC-Jack is optional for power;(25m/30m)
  9. LED indicator desgined for easy status monitoring;(25m/30m)
  10. Gold-Plated

What's In The Box
1 x UGREEN USB 2.0 Active Extension Cable With Chipset 10M - US121 (Black)