As a part of Zotac's M-series, the new ZBOX MI551 is based on a rather small 188x188x44mm chassis but still packs quite a few features. The heart of the ZBOX MI551 mini-PC is Intel's 100-series chipset paired up with Intel's Core i5-6400T CPU. This quad-core CPU is based on Skylake architecture, has 6MB of L3 cache and works at 2.2GHz base and 2.8GHz maximum Turbo clocks. It unfortunately lacks Hyper Threading support, but has a low 35W TDP, Intel HD Graphics 530 GPU and a dual-channel DDR3L-1600 and DDR4-2133 memory support.

While it might have DDR4 support, Zotac decided use DDR3L memory on the ZBOX MI551 so it features two DDR3L SODIMM slots with support for up to 16GB of DDR3L-1600 memory. When it comes to storage, the ZBOX MI551 has a single 2.5-inch SATA 6Gbps port, one M.2 SATA SSD slot and a 3-in-1 card reader. Connectivity wise, it features a single USB 3.1 Type-C port at the front as well as two USB 3.0 ports and one USB 2.0 port, dual Gigabit Ethernet, integrated 802.11ac WiFi and Bluetooth 4.0, two DisplayPort and single HDMI output. It is also important to note that ZBOX MI551 uses active cooling, so those looking for a completely silent system should look elsewhere. 

The ZBOX MI551 will be available as a barebone version and as a Plus version, which includes 4GB of DDR3L-1600 memory and 120GB M.2 SATA SSD.

Unfortunately, Zotac did not reveal any details regarding the price or the actual availability date for the new ZBox MI551 mini-PC.