K3921-N (pictured) has two DisplayPort v1.4, one DisplayPort via front USB type-C, an embedded DisplayPort and a dual-channel 24bit LVDS interface. A total of two 4K UHD and one FHD can be driven.
There are two DisplayPorts 1.4, one DisplayPort via front USB-Type-C Alt mode (DPoC) plus onboard connectors for Embedded DisplayPort and Dual-Channel 24bit LVDS panels.
Processor choice is Processor N50 (2core 6W), N97 (4core 12W) or N200 (4core 6W), or Core i3-N305 (8core 9-15W), and the board can accept up to 32Gbyte of DDR5 4800 memory.
Two M.2 connectors are provided: one for storage and the other for wireless comms.
Two Ethernet ports cover 1x 1Gbit/s and 1x 2.5Gbit/s, and there are two COM headers: 1x RS232/422/485 and 1x RS232 only.
Nine USB connections are available: 2x USB 3.2 Gen1 (blue) and 2x USB 3.2 Gen2 (red) on the rear, 1x USB 3.2 Gen1 and 1x USB 3.2 Gen1 Type-C on the front, and headers for 3x USB 2.0.
Trading lower cost for fewer features, K3921-H mini-STX is only available with a Processor N100 (4core 6W) and, although it can still support two 4K and one HD display, it looses the LVDS connection.
Other limitations are that it does not have the 2.5Gbit/s Ethernet port, nor the RS232/422/485 COM header.
Both board can accept power from two sources: 20V PD in through USB-C, or there is rear-panel auto-dual-range (12V or 19-28V) input jack that is mirrored on an internal 4-pin connector.
“Designed and manufactured in Germany, the Kontron mini-STX boards are designed and developed for continuous 24-hour operation,” said RDS. “They are suited for industrial automation, medical equipment, digital signage, point of information and gaming.”
