We thus will interest we in the two last born of the most active German manufacturers in the matter, namely Alphacool and 1A-Cooling. At this first, c?est towards NexXxoS XP that we turned ourselves, the last evolution in date of the waterblocks of its NexXxoS range left now a few months ago. With regard to 1A-Cooling, we got recent 1a-sl2. Two reasons with that: firstly this waterblock inaugurates a very new design in the manufacturer, who slices frankly with that of 1a-hv, 1a-hv2 and 1a-hv3; and secondly? and well you will find of it the reason all alone in the pages which follow!