Cheap And Discounts 2023New ROCK PI 4 Plus Model B Rockchip RK3399 SBC/Single Board Computer(Upgrade Version of Rock Pi 4B) Rock pi 4B+ Raspberry Wholesale. Buy Directly From Merchant CCCC2 Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.