Welcome to your ultimate ergonomic products guide


Usb Extension Options: Breaking The 16 Foot Barrier

For the past ten years USB and FireWire havemaximum distance of 80 feet between your
struggled to dominate the desktop interfacecomputer and USB device. They are available
market. Until five years ago, because of thein  USB 1.1 (12 Mbps) and USB 2.0 (480 Mbps).
relatively fast 400 Mbps offered by FireWire,
USB, jokingly referred to as Ultra SlowFor most USB extensions 80 feet is long
Bandwidth, was relegated to low-bandwidthenough, but what if you need to go further?
applications such as keyboards and mice. AtSuper USB Extenders allow you to extend the
the end of 2001, however, USB dealt a fataldistance to your USB devices up to 150 feet
blow to FireWire with the release of the newwith no loss in signal. The Super USB
USB 2.0 standard offering a maximum speed ofExtender uses similar technology for the male
480 Mbps, faster than the theoretical limitand female interfaces, but rather than have a
of FireWire (though, in practice, usuallyregular USB cable in the middle, it uses a
slower).Cat 5 cable (also known as a networking
cable). The advantage of Super USB Extenders,
It seems that USB has essentially won theother than the increased maximum distance, is
standards battle with FireWire because of itsthe ability to create a custom length. If you
relative low-cost and high availability. Theneed to go 63 feet, for example, you can
limitation of USB (both the 1.1 and 2.0simply use a Super USB Extender with a 63
standards popular today) is the 16 footfoot Cat 5 Cable between the booster and
limit. When you have more than 16 feetreceiver. Super USB Extenders are also
between your computer and your USB device youavailable  in  USB  1.1  and  2.0 interfaces.
will see significant degradation in the
signal that can cause problems ranging fromIf you are looking for a connection beyond
slower transmission speeds to an entirely150 feet, many manufacturers offer a special
dropped connection. This causes problems forSuper USB Extender capable of USB transfer
people who want to run a USB cable to awith no signal loss at 330 feet, though this
printer located in another room, to ais limited to USB 1.1. Black Box has created
presentation keyboard/mouse combo or anya USB 1.1 extender capable of transmission up
other USB device that may be in a remoteto 1000 feet without signal loss, perfect for
location.connecting your computer to a security camera
or webcam hundreds of feet away from your
The cheapest (and arguably easiest) way tocomputer.
extend the distance to your USB device is by
using a USB Active Extension Cable. TheseAnother exciting innovation for USB extension
cables have built-in USB repeaters thattechnology is the pending release of Wireless
actually boost the USB signal, allowing youUSB. Wireless USB hubs and devices are
to go further than the 16 foot maximumanticipated to show up in early 2006 with
distance. The most common length for thesemaximum distances over 100 feet. Keep in mind
cables is 16 feet and you can chain up tothat this is the first release and as the
four of these together with no loss intechnology matures this distance limitation
signal. Assuming you are using the longestwill inevitably be lifted in favor of much
USB device cable available (also 16 feet),further distances.
USB Active Extension Cables allow for a



1 A B C D 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117