The ASUS-made Google Nexus 7 is one of the most popular tablets currently available on the market, but it still doesn't have an official docking station.

The Nexus 7 went on sale back in the summer, and leaks of a docking station for the tablet first surfaced in August. Several months later, the official dock is still yet to launch, and the companies offered no precise date for the global release.

After months of rumors and speculation, the docking station recently showed up in a very detailed unboxing video from Tech2. The Nexus 7 dock featured in the video is clearly built by ASUS, and it looks very solid and elegant. The packaging shows that the dock supports Android 4.2 Jelly Bean.

The ASUS-built Nexus 7 dock sports the Nexus and ASUS logos on the sides, and comes with a USB and a 3.5mm audio jack. The docking station features no clips or locks, users simply need to place the tablet on its side and enjoy the support. At rest, the charges charges via the pins located on the side of the device. Users can also sync and charge their Nexus 7 through the dock's micro USB port.

As the docking station uses the Nexus 7's pogo-pin support, it eliminates the need to connect any cables, and it makes it easy to dock the tablet properly. Instead of trying to put the tablet in the proper position, users will simply need to drop it in place - somewhat similarly to Nokia Lumia 920's wireless charging.

It remains a mystery, however, just when the docking station would launch, and why is it taking so long. The accessory has only been spotted on the Japanese ASUS Web site so far, for the equivalent of $42 (£26). The gadget was previously rumored to sport a $50 price tag.

Various blog reports claimed the companion dock for the Google Nexus 7 would hit the Japanese market sometime by the end of the year, and a global release would follow shortly. Neither ASUS nor Google, however, have announced an official release date for the docking station.