ROCK Pi 4 Review – A Raspberry Pi Alternative Starting at $39

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The ROCK Pi 4 is another new Raspberry Pi alternative, based on the latest Rockchip RK3999 Soc that is currently very popular among Chinese SBC manufactures. Expected to be officially launched this month in two editions. Rock PI 4 Model A will feature basic hardware specs which include a snappy Rockchip RK3399 64bit Hexa core processor composes of a pair of clusters, operating at clock frequencies of 1.8GHz and 1.4Ghz, M.2 SSD Socket, 40-pin expansion header, on board WiFi antenna socket, Micro-SD Card socket, On-board eMMC Expansion interface, HDMI 2.0 port, Two USB V3.0 Hosts, MIPI Interface,  RTC, USB Type-C port, and a 3.5 mm jack with MIC.

Both models are expected to come in two three RAM configurations with few improvements between the basic and the high-end model. The Rock Pi Model A is expected to sale at  price tag of $39 (1GB RAM), $49 (2GB RAM) and $65 (4GB RAM). The Model B, which adds PoE (Power over Ethernet) and a WiFi-ac/Bluetooth 5.0 wireless module will sell for $49 (1GB RAM), $59 (2GB RAM) or $75 (4GB RAM).


ROCK Pi 4 Specs:

  • Processor — Rockchip RK3399 (2x Cortex-A72 at up to 2.0GHz, 4x Cortex-A53 @ up to 1.5GHz); Mali-T860 MP4 GPU
  • Memory/storage:
    • 1GB, 2GB, or 4GB LPDDR4 RAM (dual-channel)
    • eMMC socket for 8GB to 128GB (bootable)
    • MicroSD slot for up to 128GB (bootable)
    • M.2 socket with support for up to 2TB NVMe SSD
  • Wireless — 802.11b/g/n/ac (2.4GHz/5GHz) with Bluetooth 5.0 with antenna (Model B only)
  • Networking — Gigabit Ethernet port; PoE support on Model B only (requires RPi PoE HAT)
  • Media I/O:
    • HDMI 2.0a port (with audio) for up to 4K at 60Hz
    • MIPI-DSI (2-lane) via FPC; dual display mirror or extend with HDMI
    • MIPI-CSI (2-lane) via FPC for up to 8MP camera
    • 3.5mm audio I/O jack (24-bit/96KHz)
    • Mic interface
  • Other I/O:
    • 2x USB 3.0 host ports
    • 2x USB 2.0 host ports
    • USB 3.0 Type-C OTG with power support and HW switch for host/device
  • Expansion — 40-pin GPIO header (see pin-out diagram); M.2 slot for SSD (see mem/storage)
  • Other features — RTC with optional battery connector
  • Power:
    • 5.5-20V input
    • USB Type-C PD 2.0, 9V/2A, 12V/2A, 15V/2A, 20V/2A
    • Qualcomm Quick Charge support for QC 3.0/2.0 adapter, 9V/2A, 12V/1.5A
    • 8mA to 20mA consumption
  • Operating temperature — 0 to 80°C
  • Dimensions — 85 x 54 mm
  • Operating system — Android 9.0; “some” Linux distros

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