DFI MTH253-BN-16U5155U 12-Core Intel Core Ultra 7 155U 4″ x86 SBC with 9 to 36 V DC Input and Triple LAN

Fans are often the first part to fail in a dusty packing hall or on a machine that is washed down around its enclosure. A sealed cabinet with a fanless board removes that service call. The MTH253-BN-16U5155U is the fanless Core Ultra 7 build in the DFI MTH253 series of 4″ x86 SBCs, with a 15 W processor that stays inside a passive heat budget.

Its Intel Core Ultra 7 155U (Meteor Lake) runs 12 cores from 1.7 to 4.8 GHz within a 15 W TDP, with 12 MB of cache, cooled by a passive heatsink. Memory is 16 GB of LPDDR5/x soldered in dual channel, enough for an HMI, a protocol gateway and a local database on one board. The integrated Intel graphics decode AV1, HEVC, VP9 and AVC in hardware and drive HDMI 1.4b, USB-C with DisplayPort Alt Mode and an internal dual-channel LVDS panel for up to three displays.

Two 2.5GbE ports on Intel I226V and one GbE port on Intel I210AT give separate machine, plant and uplink networks. Six COM ports (two RS-232/422/485 and two RS-232 on DB9, two RS-232 on internal headers) and 8-bit DIO on COM4 reach PLCs, meters and printers directly. Five USB 3.2 Type-A ports, a USB 2.0 header, an M.2 M-key at PCIe Gen4 x4 for an NVMe SSD, an M.2 B-key with nano SIM for 4G or 5G, an M.2 E-key for Wi-Fi and a SATA 3.0 port cover storage and wireless.

The MTH253-BN-16U5155U runs from 9 to 36 V DC on a 4-pin or barrel connector and operates from -5 to 65 °C. It carries CE, FCC, UKCA and RoHS compliance and a TPM 2.0. For a lower-cost fanless build with the same 12 cores, choose MTH253-BN-16U5125U; for more graphics and processing headroom with an active cooler, MTH253-BN-32U7165H brings 16 cores and 32 GB.