Asus Z87M-PLUS User Manual page 12

Z87M-PLUS specifications summary
Support DVD contents
Form factor
Specifications are subject to change without notice.
xii
Drivers
ASUS Utilities
ASUS Update
Anti-virus software (OEM version)
uATX form factor: 9.6 in. x 8.4 in. (24.4 cm x 21.3 cm)