I already had a unit of Zotac namely the ID41. This was equipped with a 128 GB SSD hard drive and 8GB of RAM. Now I bought a ID90 with an i7 processor. There were also 8 GB (2x4) Ram Kingston with 1600Hz (quite sufficient) and a SSD hard drive with 250GB of Samsung. I installed Win8. The device is surprise quickly. In 10 sec. The unit is already fully operational. The Wi-Fi is already available shortly after launch (no waiting time). The unit is extremely quiet, even though it is mounted just behind my monitor and there's really nothing audible. I use this as a full-fledged computer. An additional external DVD drive is when you install advantage. The higher price compared with ID41 is certainly fine. The included manual control I do not benütze because I do not need them. Purchasing the ID90 I do not regret. If I forgive a touch towards ID41, ID41 then has the grade 4 and the ID90 grade 1 plus. Simply a top unit.