Antec p100 tower gaming atx case 2 x usb3 soundproofed toolless 2 x fdb fans description the p100 is an atx case that epitomizes cool quiet and sophistication it features antecrsquos award winning the performance one series design and quiet computingtrade technologies that minimize system noise in addition to 7 expansion slots the p100 also supports 2 tool less 525rdquo drives and 7 tool less 35rdquo 25rdquo drives with a great price to feature ratio the p100 is the only econ