Rock Pi 4 Model C: NVMe and eMMC in a Raspberry Pi Layout

Originally announced in October 2019, Rock Pi 4 Model C from Radxa has been unavailable for purchase until now. CNX Software have keenly spotted that the Rock Pi 4 Model C is now available from $59. Rock Pi 4 Model C is a design hybrid, measuring 3.3 x 2.1 inch (85 x  54 mm) this board shares layout cues from the Raspberry Pi 3 and 4 but it has a little more to it than a Raspberry Pi.

Rock Pi 4C Specifications

  • SoC – Rockchip RK3399 big.LITTLE hexa-core processor with
  • CPU: 2x Arm Cortex-A72 @ up to 1.8 GHz, 4x Cortex-A53 @ up to 1.4 GHz
  • GPU: Mali-T864 with support OpenGL ES1.1/2.0/3.0/3.1/3.2, Vulkan 1.0, OpenVG1.1, OpenCL 1.1/1.2, DX11, and AFBC
  • VPU with 4K VP9 and 4K 10-bit H265/H264 decoding
  • 64-bit 4GB LPDDR4 @ 3200 Mbps (single chip)
  • eMMC module socket up to 128GB
  • Micro SD card slot up to 2TB
  • 4-lane M.2 NVMe SSD socket (expansion board required)
  • Micro HDMI 2.0a up to 4K @ 60 Hz
  • Mini DP 1.2 up to 2560 x 1440 @ 60 Hz
  • Audio – Via HDMI and 3.5mm audio jack
  • Camera – MIPI-CSI2 connector for camera up to 8MP
  • Connectivity – Gigabit Ethernet with PoE support (add on required), dual-band 802.11b/g/n/ac WiFi 5, Bluetooth 5.0 with on-board antenna
  • USB – 1x USB 3.0 host port, 1x USB 3.0 OTG port, 2x USB 2.0 host ports
  • Expansion – 40-pin I/O header with 1x UART, 2x SPI bus, 2x I2C bus,  1x PCM/I2S, 1x SPDIF, 1x PWM, 1x ADC, 6x GPIO, and power signals (5V, 3.3V, and GND)
  • Misc – RTC with connector for backup battery
  • Power Supply – Via USB-C port supporting USB PD 2.0 (9V/2A, 12V/2A, 15V/2A, or 20V/2A) and Qualcomm Quick Charge 3.0/.0 (9V/2A, 12V/1.5A)

RockPi 4C Board

(Image credit: Radxa)

The Rockchip RK3399 hexa-core processor features a dual core Arm Cortex A72 1.8GHz, the same A72 CPU as found in the Raspberry Pi 4, but the Raspberry Pi has a quad core CPU running at 1.5GHz, so with less cores but more speed will there be much difference in performance? We will need to get a hold of a unit for test! 

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