Mailing the story:
Quartz64 Zero – A customizable, cost-optimized Rockchip RK3566T SBC with Raspberry Pi PCIe connector
The Quartz64 Zero is a thinner, cheaper version of the Quartz64 Model B with a Rockchip RK3566T quad-core Cortex-A55 SoC clocked at 1.6 GHz, 1GB LPDDR4, and HDMI and USB ports.