... 1066/1333MHz; 2, Built-in 4GB RAM, 320GB HDD; 3, GPS, wifi is Optional; 4, Mini @ just 178mm*120mm*48mm Model ... Holder Controller7, Built-in Digital Sound Transformer8, Built-in GPS Navigation is Optional (GPS Module: SIRF-III)9, Built-in Wifi is ... 9.0HDD1x 2.5" SATA HDD 320GB (already integrated)AMP50W x 4 (= 2x Front L&R/2x Rear L&R) Support ... Car PC, In Car PC, Auto PC, DDR3/4GRAM 320HDD/GPS/wifi