User's Manual
viii
B85-A R2.0 specications summary
Specications are subject to change without notice.
Back Panel I/O
ports
1 x PS/2 keyboard port (purple)
1 x PS/2 mouse port (green)
1 x DVI port
1 x D-Sub port
1 x LAN (RJ-45) port
4 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
3 x Audio jacks support 8-channel audio output
Internal
connectors
1 x USB 3.0 connector supports additional 2 USB 3.0 ports
2 x USB 2.0 connectors support additional 4 USB 2.0 ports
1 x System panel connector
1 x S/PDIF connector
1 x Front panel audio connector (AAFP)
2 x SATA 3.0 Gb/s connectors
4 x SATA 6.0 Gb/s connectors
1 x 4-pin CPU fan connector
1 x 4-pin Chassis fan connector
1 x COM Header
1 x Clear CMOS jumper (2-pin)
1 x 24-pin EATX power connector
1 x 8-pin ATX 12V power connector
BIOS features 64 Mb Flash ROM, UEFI AMI BIOS, PnP, DMI v2.0, WfM2.0, SM BIOS v2.7,
ACPI v4.0a, Multi-language BIOS, ASUS EZ Flash 2, ASUS CrashFree BIOS
3, My Favorites, Quick Note, Last Modied log, F12 PrintScreen, F3 Shortcut
function, and ASUS DRAM SPD (Serial Presence Detect) memory information
Manageability
Wfm 2.0, DMI 2.0, WOL by PME, PXE
Support DVD Drivers
ASUS utilities
EZ Update
Anti-virus software (OEM version)
Form factor
ATX form factor: 12.0”x 8.2” (30.5cm x 20.8cm)