The module itself is much smaller compared to a standard module. Measuring only 1.18 inches this module is ideal for low profile systems, servers and of course overclockers and concept PC's, where space is usually tighter since double sided modules come with 16 memory chips in total. This means you can't use this module in the third DIMM slots on Intel I845D, E and G motherboards - but then again very few can.
As mentioned, Kingmax uses 16 chips on all of their modules. These chips are produced for Kingmax by Kingpak, Kingmax's chip fab plant. The chips are in TinyBGA form, a very excellent packaging technology which reduces heat and increases signal integrity over standard memory modules. This chips are rated at 5ns making them fully 400 MHz compliant, not like some of the previous "DDR-400" reviews we've seen floating around.
After all the testing and quality assurances have been completed, Kingmax slap a sticker on the module with serial, lot and batch numbers for reference purposes as well as the speed, size and CAS Latency which is a well known Kingmax trait. What I would like to see for future modules is a new coloring or heat spreader added to the memory, as this would make it more attractive.