USB-A Active Extension
The USB Active Extension Cable is not a passive extension cable.  It is an active device.  The USB signals going in and out of the extension cable are buffered to assure signal quality and the meeting of the USB's Electrical and Timing Specifications.  Using passive cables for the purpose of extension will result in signal errors and is not recommended. 

The cable allow a USB device to have it's cable length extended by up to and additional 80 ft.*, by serially connecting 16 ft. cables.  The USB Extension Cable acts as a transparent USB Hub and buffers all down-stream and upstream data traffic.  Both Low-Speed and High-Speed devices will function equally well with the USB Extension Cable.
 * Although it is possible to use multiple USB Extension Cables in a row (up to 5, since each cable replaces a series Hub), users should verify that adding the cables does not affect the operation of the USB device.
Specifications
Parameter
Value
Units
Notes
Maximum Supply Current Drawn
5.0
mA
 Max@40°C typical current less than 3mA
Maximum Cable Voltage Drop
0.095
Volts
 @500mA, Ta=40°C
VBUS and GND Wire Sixe
20
AWG
  
D+& D-Wire Size
28
AWG
 Stranded-Twisted Pair.
90 Ohm Charactristic Impedance
Cable Shield     Aluminized wrap foil with 28 AWG drain wire 
and copper mesh over foil.  UL approved.
High Speed Mode
12
Mbps
 When used with high speed peripheral
Low Speed Mode
1.5
Mbps
 When used with low speed peripheral
Operating Temp. Range
0-40°
C
  
Storage Temp. Range
-40-+85°
C
  
USB Transceiver Specification     Meets USB Specifications
Down Stream Connector
Female
Type "A"
 USB Approved Connector
Up Stream Connector
Male
Type "A"
 USB Approved Connector