Shenzhen Xunlong's Orange Pi R1 Plus Is an Open Source Single-Board Computer with a Rockchip RK3328 The upgraded Orange Pi R1 is designed for router applications. We have yet another Orange Pi single-board computer from Shenzhen Xunlong and the latest to their long list of open source products, which includes the recent Orange Pi Zero 2. The manufacturer has now launched an upgrade to its Orange Pi R1: the Orange Pi R1 Plus. Orange Pi R1 Plus specs (ð·: AliExpress) The module â measuring 56x57mm â is based on the popular Rockchip RK3328 quad-core Cortex-A53 64-bit processor clocked up to 1.5GHz, which is a major improvement to its predecessor's 32-bit Allwinner H2+. The Orange Pi R1 Plus also features a Mali-450MP2 GPU.