1、Gigabit Ethernet: Mini board module adds on board Gigabit Ethernet design, supports IEEE1588, suitable for internet application development. 2、Strong Performance: CPU upgraded to BCM2711, quad core Cortex A72 64 bit processor, more powerful performance. 3、B to B Connector: CM4 ultra mini expansion board adopts B to B connector design, which changes the design of gold fingers of previous generations of CM series and enhances stability. 4、Wireless Module: Add wireless module options, use the same WIFI and BT modules as PI4B, provide on board PCB antenna and external antenna, more suitable for industrial applications. 5、PClE Interface: Onboard standard CM4 connector, integrated with a variety of peripheral interfaces, suitable for narrow application environments, increase the PClE interface expansion. Item Type: Mini Base Board for RPi CM4 Material: PCB CM4 Deck: For All Versions of Compute Module 4 Connector:1 x For RPi 40PIN GIPO Interface USB:1 x USB2.0 Type A Interface Camera:1 x MIPI CSI 2 Interface (15pin 1.0 mm fpc Connector) Storage Onboard: Micro Memory Card Slot (for Versions Without eMMC) 1 x Mini Base Board for RPi CM4 1 x Straight Needle