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Raspberry Pi single-board computers (SBCs) are in continuous short supply thanks to the effects of COVID-19, supply chain issues, and all the other upsets going on in the world driving prices of the boards you can find through the roof. While the makers of the ever-popular Raspberry Pi have promised to work on supply issues, in the meantime hobbyists and professionals alike are looking for alternatives.
Power requirements: USB Type‑C PD Version 2.0 with 9V/2A, 12V/2A, 15V/2A, and 20V/2A 5V Power applied to the GPIO PIN 2 & 4.
HDMI: Dual HDMI ports supporting displays up to 8Kp60 resolution and 4Kp60 Micro-HDMI input port supporting up to 4Kp60 resolution
USB: 2x USB2 HOST ports 1x USB3 HOST port 1x USB3 OTG/HOST port
Expansion: 1x 2.5 Gigabit Ethernet port (supports PoE with add‑on PoE HAT) 1x M.2 M Key with PCIe 3.0 four‑lane support 1x M.2 E Key with PCIe 2.1 one‑lane, SATA, SDIO, UART support 1x eMMC module connector for eMMC 5.1 support 1x Camera port (4‑lane MIPI CSI) 1x Display port (4‑lane MIPI DSI)
Storage: Micro SD/eMMC
UARTS: 2x UART
On/Off Power Button: Yes
Software: Full implementation of the Arm architecture v8 instructions set Debian/Ubuntu Linux support Android 12 support
Temperature: Operation temperature: 0~50 ℃ (32 F to 122 F) Storage temperature: -20~80 ℃ (-4 F to 176 F)
A quick scan through the tech specs will show you that this board packs quite a punch.
Octa-core processor, dual HDMI with one port supporting up to 8K, a 2.5 Gigabit Ethernet port, two M.2 slots, an eMMC module connector, and broad software support.
That's a lot of power, justifying the roughly $170 price tag (which, if you think is high, I've seen Raspberry Pis selling for more than that).
Ypu can also fit an NVMe SSD to the M.2 slot on the back. Here I'm fitting a 512GB Lexar NM620 NVMe SSD, a drive that's perfect for this sort of application thanks to the fact it offers great performance at a fantastic price of under $50.
I've carried out some preliminary performance testing on this board, and the results show that this has a lot more power under the hood than the Raspberry Pi 4 Model B, but I've yet to establish if this translates into something that's noticeable in the real world.
My assumption at this point is that this board is better suited to heavier, more processor-intensive workloads, and that for low-intensity workloads the eight-core processor and 8GB of RAM are wasted.
There's no doubt that the Rock 5 Model B is a great board, but I'm not sure that it's a replacement for the Raspberry Pi 4. Some aspects of it -- the octa-core processor, 2.5 Gigabit Ethernet, and M.2 slot -- feel like features that should be in the Raspberry Pi 5, but the lack of onboard Wi-Fi and Bluetooth is puzzling.
All the cons aside, this is a solid board that offers a ton of cool, high-end features coming in at under $200. The Rock 5 Model B is definitely worth keeping an eye on. Think of it less as a replacement for the Raspberry Pi 4, and more a Raspberry Pi 5 you can own today.