Belkin's upcoming Thunderbolt Express Dock has returned to a $300 pricetag, the company now says. The product has been in development since 2011, and was originally assigned the $300 price -- along with a September 2012 launch date -- at last year's CES. In June, however, the company made some modifications to the peripheral and raised the price to $400. The September release date came and went, forcing Belkin to push the launch to the first quarter of 2013.