Gefen announced it is now shipping its redesigned fiber-optics-based USB extender.
The USB-400 FO is a four-port USB 2.0 hub that can power devices up to 1,640 feet from the computer, according to the company. It's meant for professional applications "as it offers invulnerability to electromagnetic and radio signal interference," Gefen said.

It reportedly operates through compact sender/receiver units, with the sender connecting to the computer and the receiver connecting to four remote USB devices. Two multi-mode fiber-optics cables terminated in LC connectors connect local and remote locations -- both sender and receiver are individually powered, the company said, and local connection cables are included.

Suggested retail is $1,599.