The EVGA SR-3 Dark officially conforms to the E-ATX form factor. The motherboard is carved from a 16-layer PCB with gold-plated edges that supposedly improves overclocking and durability. On top of that, EVGA has equipped the SR-3 Dark with a 24-phase power delivery subsystem. A total of four 8-pin EPS connectors provides the Xeon W-3175X with all the juice that the 28-core chip requires.
The SR-3 Dark comes with a pre-installed waterblock that cools both the motherboard's C622 chipset and power delivery subsystem. However, watercooling isn't mandatory as the waterblock delivers decent passive cooling, according to EVGA.
The massive LGA3647 socket is surrounded by three DDR4 memory slots on each side. As a result, the SR-3 Dark can house up to 192GB of memory and supports memory speeds over 4,000 MHz. You can pair the motherboard with ECC (error-correcting code) memory like RDIMMs (Registered DIMMs) and LRDIMMs (Load-Reduced DIMMs).
The motherboard has a generous amount of storage options. It offers six SATA 6.0 Gb/s ports and four sSATA mini-SAS 6.0 Gb/s ports. The controller's featureset includes support for NCQ, TRIM, hot-swap capability, and RAID 0, 1, 5 and 10 arrays. There are also two M.2 Key-M 110mm slots, and you even get two U.2 NVMe ports.
In terms of expansion, the EVGA SR-3 Dark flaunts six metal-reinforced PCIe slots. Four are wired x16 electrically, and the remaining two run at x8. The motherboard officially supports up to four Nvidia GeForce graphics cards in a SLI configuration.
Internet connectivity is available through two 10 Gigabit and one Gigabit Ethernet ports. The first two are based of Intel's X557-AT2 controller while the later originates from the I219-LM controller. While we're on the rear panel, the EVGA SR-3 Dark supplies you with eight USB 3.1 Gen 1 Type-A ports and two USB 3.1 Gen 2 ports (one Type-A and one Type-C).
The EVGA SR-3 Dark's other notable attributes include eight 4-pin PWM fan headers, PCIe disable switches, triple BIOS, Slow Mode Switch, ProbeIT connectors, Safeboot button, USB BIOS Flash feature, Post indicator and PCIe/DIMM status LEDs.
EVGA backs the SR-3 Dark with a limited three-year warranty.