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The DZ77GA-70K is laid out like previous LGA1155 ATX motherboards. Most of
the connectors are at the edges of the board where they are easily accessed,
though the 8-pin EPS12V connector is in the top left corner, making it a pain
to connect in towers with top-mounted power supplies.
The board provides excellent connectivity options. There are eight SATA
ports (four 6 Gbps and four 3 Gbps), two PCI-E 3.0 16x slots (the bottom
slot runs 8x electrically) for running either CrossFire or SLI, four PWM
fan headers, and a pair of internal USB 3.0 headers.
The DZ77GA-70K is also enthusiast-friendly, denoted by the skull on the
PCH heatsink. Tweakers will appreciate the error code indicator in the
bottom right hand corner and the power and reset buttons on the center
The voltage regulation circuitry is cooled with a pair of substantial blue aluminum heatsinks measuring 28 mm high at their apex above the PCB surface.
The PCH heatsink is diminutive and saddled with a needless plastic cover
that must interfere with heat dissipation.
On the I/O panel, standard high-end features like eSATA, FireWire, and
S/PDIF connectors are accounted for along with dual gigabit ethernet ports,
four USB 3.0 ports, and a pair of USB 2.0 ports (orange) with a higher
power output for charging devices such as tablets. Also making an appearance
is Intel's Back-to-BIOS button for easy BIOS/UEFI recovery.
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