British PC maker Tranquil PC is making its comeback with three new fanless mini PCs based on AMD Ryzen Embedded SoCs. The three are part of the "mini multi display" series, and are its variants, named "Basic," "Advance," and "Advance+." The three feature Tranquil PC's latest octagonal fanless aluminium chassis measuring 180 mm x 157 mm x 54 mm. The body panels of the case double up as heatsink for the sub-25 Watt SoCs. Connectivity is common between the three. On the front-panel, you get two USB 3.0 ports, one of which is type-C; HDA audio jacks, and interestingly an RS232 serial COM port.

The rear panel gives you access to four DisplayPort 1.2 connectors, which can each drive a 4K UHD display; two additional type-A USB 3.0 ports, two 1 GbE interfaces, and hardpoints for the WLAN antennae (802.11ac + Bluetooth 4.1). SoC variant and storage is what differentiates the three. The Basic trim gives you a Ryzen Embedded V1202B (2-core/4-thread, up to 3.20 GHz) chip, 8 GB of DDR4 memory, and 256 GB of SSD storage. The Advance trim gets you the faster 4-core/8-thread Ryzen Embedded V1605B (up to 3.60 GHz); 16 GB of memory, and 256 GB SSD storage. The Advance+ trim steps that up with 32 GB of memory, and 1 TB of SSD storage. The company didn't reveal pricing.