Operating System: Windows 10 Home & Pro MAR, Ubuntu Linux, Free DOS Chipset: AMD B350 FCH Processors: AMD PRO A8 Series, AMD PRO A10 Series, AMD Ryzen 3 PRO, AMD Ryzen 5 PRO Memory Support: Four (4) DIMM slots ,64 GB DDR4, Up to 2666 MT/s Hard Drive: HDD or SSD Removable Media: DVD-ROM/ DVD-ReWritable, Slim Line (Optional) Expansion Bays : Internal: Two (2) 6.35 cm (2.5 in), One (1) 8.89 cm (3.5 in), Eternal: One (1) 0.9 cm (0.35 in) Slim optical disc drive (ODD) Expansion Slots : One (1) PCI Express x1 LP, One (1) PCI Express x16 LP, One (1) M.2 PCIe x1 2230, One (1) M.2 PCIe x2 2280/2230 Graphics : Integrated Audio : Conexant CX20632 Communications : Realtek RTL8111EPH I/O Ports : Front: 1 headset connector; 1 USB 2.0; 1 USB 2.0 (fast charging); 1 USB Type-C? (charging); 2 USB 3.1 Gen 1,Rear: 1 audio-in; 1 audio-out; 1 power connector; 1 RJ-45; 1 serial and PS/2 ports combination; 2 DisplayPort? 1.2; 2 USB 3.1 Gen 1; 4 USB 2.0 Power : 180 W active PFC Dimensions : 9.4 x 29.7 x 26.9 cm Weight : 4.5 kg