In April 2015 the C800 was launched:
Clientron Corp., a world-leading manufacturer of thin client, POS and embedded system, announces its new thin client C800, designed with the latest power-efficient Intel Celeron N2807 1.58GHz(burst frequency 2.16GHz) dual-core SoC processor, delivering significantly improved performance and power efficiency compared to the previous generations of Intel Atom CPUs.The C800 is designed for an entry-level thin client supporting graphics with outstanding multimedia experience and PC-like performance. The C800 thin client supports IntelR Virtualization Technology with flexibility and robustness of software development resources for embedded developers. The C800 model is also compatible with desktop virtualization platforms from Citrix, VMware and Microsoft VDI environments and the related cloud applications.
With the benefits of high security, ease of management and lower total cost of ownership, the Clientron C800 features DDR3L-1333 RAM up to 8GB and onboard eMMC flash storage from 4GB to 16GB of capacity, which can greatly improve virtualized performance and replace SATA SSD with lower price. Incorporating with the ultra-compact and fanless design, the C800 supports one USB 3.0 port, three USB 2.0 ports, dual DVI displays, one Gigabit Ethernet and optional WiFi module.
I've tracked down a datasheet on the C800.
The 10zig 44XX looks to be a rebadged C800. The circuit board does carry a paper sticker saying C800. However the Clientron datasheet says the CPU is a 1.58GHz Celeron N2807 whilst the 10ZiG example is fitted with a 1.33GHz Atom E3825.