Rock Pi 4 Model A 1GB (ohne WLAN/Bluetooth)
Rockchip RK3399Processor64bithexacoreprocessor
Dual Cortex-A72, freqency 1.8Ghz with quad Cortex-A53, frequency 1.4Ghz
GPU 
Mali T860MP4 gpu, supports OpenGL ES 1.1 /2.0 /3.0 /3.1 /3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11.
Memory LPDDR4
64bit dual channel LPDDR4@3200Mb/s, 2GB
Storage eMMCmodule
Optional industrial compatible high performance eMMC module, 8G/16G/32G/64G/128G available
Micro SD card
uSD slot supports up to 128G uSD card
M.2 SSD
M.2 connector supports up to 2T M.2 NVME SSD
Display HDMI
HDMI 2.0 up to 4k@60
Peripherie
MIPI DSI 2 lanes via FPC connector
HDMI and MIPI DSI can work at the same time, support mirror mode or extend mode.
Audio 3.5mm jack with mic
HD codec that supports up to 24-bit/96kHz audio.
Camera MIPI CSI
MIPI CSI 2 lanes via FPC connector, support up to 800MP camera
USB 3.0 OTG x1
hardware switch for host/device switch, upper one
USB 3.0 HOST x1
dedicated USB3.0 channel, lower one
USB 2.0 HOST x2
LAN
GbE LAN 

• 1 x UART
• 2 x SPI bus
• 2 x I2C bus
• 1 x PCM/I2S
• 1 x SPDIF
• 1 x PWM
• 1 x ADC
• 6 x GPIO
• 2 x 5V DC power in
• 2 x 3.3V power pin
Others
RTC battery connector for time backup(optional)
Power USB PD
Support USB Type C PD 2.0, 9V/2A, 12V/2A, 15V/2A, 20V/2A
Power Supply Qualcomm® Quick Charge™
Support QC3.0/2.0 adapter, 9V/2A, 12V/1.5A
Size 85mm x 54mm