The YY-73XX series is a slim micro atx case. Within the 12L volume, it can contain a standard microATX mother board, two 3.5"HDD, one 5.25" ODD and one Floppy disk. The spotlight of this case is it supports screwless assembling, which makes it an attractive case choice for a buiseness PC. With the abundant front panel selection, it can satisfy the taste for almost every users. It is a wonderful choice for people who are seeking small form factor pc case.