ASRock Industrial NUC-1315U/D4 4×4 Motherboard with Intel Core i3-1315U, Quad Display and Dual 2.5GbE

Small enclosures for edge gateways and display controllers leave room for a board of about 4 x 4 inches, yet the software still wants several screens and fast networking. The NUC-1315U/D4 is the Core i3-1315U build in the ASRock Industrial NUC 1300/D4 series: a 4×4 motherboard, also called a NUC motherboard, measuring 104 x 102 mm.

The Intel Core i3-1315U is a 13th Gen Raptor Lake-P processor with two performance and four efficient cores, which suits everyday control, gateway and display software. Two 260-pin DDR4-3200 SO-DIMM sockets run in dual channel for up to 64 GB. Intel Iris Xe Graphics drives up to four displays: HDMI 2.0b and DisplayPort 1.4a at the rear, plus DP 1.4a from the USB4 and USB-C ports at the front. HDMI and DisplayPort each reach 4096 x 2160 at 60 Hz, which suits multi-screen signage and control displays.

I/O covers two 2.5GbE ports on Intel I226LM controllers, one USB4/Thunderbolt 4 port, five USB 3.2 Gen2 ports (four Type-A, one Type-C) and two USB 2.0 on an internal header. One RS-232/422/485 port on an internal header links serial equipment. Storage is an M.2 Key M socket (2242/2260/2280) on PCIe Gen4 x4 for an SSD plus a SATA3 port, and an M.2 Key E 2230 socket with PCIe x1, USB 2.0 and CNVi takes a wireless module. The NUC-1315UE/D4 is the same board with the embedded Core i3-1315UE, and the NUC-1335UE/D4 steps up to a Core i5 with vPro and AMT.

Power is 12 to 19 V DC on a DC jack, with AT and ATX power-on modes. The NUC-1315U/D4 operates from -20 to 70 °C and can be stored from -40 to 85 °C at 5 to 90% humidity. TPM 2.0 is onboard, and a watchdog timer with 256 steps from 0 to 255 seconds resets the system if software stops responding. The board stands 38 mm tall.