Note on 23 Feb 2019 : The boards color is now in red. This is an assembled buffer board using diamond buffer architecture. Diamond buffer is well-proven structure in audio application with the strength of wide bandwidth and strong driving capability. The buffer board can be used as a building block in the audio path, such as a buffer in between the digital audio source and the preamplifier, or even as a preamplifier( gain of 1) by adding a potentiometer at the front. PCB dimension: 60mm x 43mm. The board requires a +/-15V DC power supply. Current consumption would be decided by the loading. We do air shipping worldwide at US$6.00. We welcome combine shipping. On Apr-06-11 at 21:12:00 PDT, seller added the following information: SquareTrade AP6.0 SquareTrade squaretrade warranty v2.0 Track Page Views With Auctiva's FREE Counter Powered by SoldEazy