Review: Adderlink X50 Extender

UK-based Adder recently launched the Adderlink X50, a cost-effective, high-performance USB and video extender. Consisting of two modules, each housed in a case 4.7 x 3 x 1 inches, the Adderlink X50 can send low- and full-speed USB connections, high quality video at up to 1920 x 1200, together with 44.1kHz digital stereo audio, over a single CAT5/5e/6 cable up to 165 feet long.

Using included cables, the Local module simply connects to any computer's VGA/D-Sub 15 video adapter and USB port. The system's audio output can also be attached via an optional cable. In most cases, the unit is powered through the USB connection, but a separate power supply is available, if needed. The other side of the device has a second D-Sub 15 port for use with a local monitor. In addition, Adder offers optional brackets to mount the X50 in a rack, taking up 2U of space.

Linked by a standard, RJ45 Ethernet cable, the Remote module has a D-Sub 15 connector for a monitor, and four USB ports for any needed peripherals, including a mouse and keyboard. There is an audio connection for speakers and a fine tuning screw to adjust the sharpness of the video. This unit is powered by a supplied A/C adapter.

High performance video cards are supported with true DDC (Display Data Channel) emulation. A User Guide PDF file on the CD that comes with the set gives a small, but concise explanation of DDC and notes that it is not possible to transmit DDC data from the Remote monitor back to the video adapter. Because of this, the module uses a default set. When the default data is not suitable for the monitor, it is suggested that the user temporarily connects the monitor to the Local module, which will read and store the DDC info. When the monitor is returned to the Remote location, the stored data will then be used. In our tests, the default set worked fine, so we didn't need to utilize this feature.

When set up in our lab, the Adderlink X50 performed exactly as expected. As soon as the connected PC was turned on, the remote screen came to life and mirrored what was being displayed on the local monitor. Initially, we even had a problem booting the OS on the computer, and were able to change boot setting remotely to get it up and running. For those with a need for a dual-monitor configuration, there is also a multiscreen version of the X50 available, with additional video connections to support the extra components.

Although uses for the device are limited, anyone who has a need to extend the control of a single system to a remote location may be interested in checking out the Adderlink X50. Its capability of transmitting high resolution video, as well as full digital stereo audio, will be of particular significance to those with digital signage, or kiosk applications.

The Adderlink X50 is currently available through distribution and has a list price of $645. The multiscreen version lists for $945.