Phoronix has posted a review on the Hiper DVI-to-HDMI Cable

Back in 2005 we were introduced to Hiper Group, a company that started out in the United Kingdom with dedication towards delivering the best quality, design, technology, and price for every Hiper product. We had reviewed the Clavier Aluminum Keyboard and Type-R Modular PSU from Hiper, but since then they have turned to offering an impressive variety of power supplies, case fans, cases, and other computer peripherals. While a simple product, one of their newer creations is a DVI to HDMI cable. This cable is made of 24 gauge wire with EMI shielding and gold-plated connectors, but at an affordable price.

Hiper DVI-to-HDMI Cable Review