• Welcome to TechPowerUp Forums, Guest! Please check out our forum guidelines for info related to our community.

Radxa Releases Affordable ROCK 3B "PI-CO ITX" SBC Starting at $45

Joined
May 30, 2015
Messages
1,906 (0.57/day)
Location
Seattle, WA
Radxa first teased their ROCK 3B back in 2021 when the smaller and lower power ROCK 3A launched, and has just now finalized the design and specs with what they call the "PI-CO ITX" form factor; a tad over Pico-ITX size but with a standard Raspberry Pi 40-pin GPIO and rear-facing I/O. The board measures 100 x 75 mm which means it definitely won't be fitting into any housings made for the Raspberry Pi, but with the I/O aligned to one side there's a chance some Pico-ITX cases could still fit. This closely mirrors the already released ROCK 5B, but where that SBC is targeting a much higher performance and price point (with the cheapest 4 GB model MSRP set at $130 USD), the ROCK 3B starts at only $45 USD for the 2 GB, and even the 8 GB variant is only $75 USD.




Don't be fooled into thinking the lower price means Radxa didn't pack all that available board space with features. The ROCK 3B is bristling with expansion to justify its larger size.


  • Rockchip RK3568 2.0 GHz quad-core 64-bit ARM Cortex-A55
  • Mali G52 GPU supporting OpenGL ES 3.2, OpenCL 2.0, Vulkan 1.1
  • VPU supporting 4K60 H.264/H.265/VP9 decoding and 1080p60 H.264/H.265 encoding
  • AI NPU with support for TensorFlow, TF-Lite, Pytorch, Caffe, ONNX, MXNet, Keras, and Darknet
  • LPDDR4 - 2 GB, 4 GB, or 8 GB
  • M.2 E-Key PCI-E 2.0 for optional WiFi 6 module
  • M.2 B-Key for 4G LTE/5G cellular, SATA, USB
  • M.2 M-Key PCI-E 3.0 slot for NVMe SSDs
  • Rear-side pluggable eMMC module
  • MicroSD card slot
  • HDMI 2.0 supporting 4K60
  • 2x USB 3.0 (1x OTG, 1x Host), 2x USB 2.0 ports
  • Dual Gigabit Ethernet ports w/ PoE via optional PoE HAT (one port)
  • 40-pin GPIO R Pi 3 compatible header w/ SPI, I2C, PCM/I2S, CAN, PWM, ADC, USB 2.0 and 5 V/3.3 V, GND power pins
  • 2x MIPI DSI ports - one 4-lane and one 2-lane
  • MIPI CSI camera connector
  • 3.5 mm audio jack
  • eDP connector
  • Touch Panel connector
  • RTC with header for battery
  • IR receiver
  • Power and recovery buttons
  • USB Type C port for 6-20 V power, USB PD 2.0 or fixed voltage
More information about the Radxa ROCK 3B including available accessories can be found on the Radxa wiki. The ROCK 3B is available now from partnered retailers.

View at TechPowerUp Main Site | Source
 
Joined
Jan 5, 2017
Messages
299 (0.11/day)
System Name Main
Processor 8700K
Motherboard Maximus Hero X
Cooling EVGA 280 CLC w/ Noctua silent fans
Memory 2x8GB 3600/16
Video Card(s) EVGA 2080TI Hybrid
Very cool, Dual NICs is great. If it can work as an OpenBSD or FreeBSD firewall I'll definitely pick one up.
 
Joined
Apr 18, 2019
Messages
2,222 (1.15/day)
Location
Olympia, WA
System Name Sleepy Painter
Processor AMD Ryzen 5 3600
Motherboard Asus TuF Gaming X570-PLUS/WIFI
Cooling FSP Windale 6 - Passive
Memory 2x16GB F4-3600C16-16GVKC @ 16-19-21-36-58-1T
Video Card(s) MSI RX580 8GB
Storage 2x Samsung PM963 960GB nVME RAID0, Crucial BX500 1TB SATA, WD Blue 3D 2TB SATA
Display(s) Microboard 32" Curved 1080P 144hz VA w/ Freesync
Case NZXT Gamma Classic Black
Audio Device(s) Asus Xonar D1
Power Supply Rosewill 1KW on 240V@60hz
Mouse Logitech MX518 Legend
Keyboard Red Dragon K552
Software Windows 10 Enterprise 2019 LTSC 1809 17763.1757
Wow! That's a lot of I/O for a 'cheap' ARM64 SBC.
The fully-exposed PCI-E 3.0 is a big selling point over RPi.

I kinda want one, and I'm not even sure I could find a deployable use...
 
Joined
Sep 25, 2023
Messages
134 (0.43/day)
Location
Finland
System Name RayneOSX
Processor Ryzen 9 5900x 185w
Motherboard Asus Strix x570-E
Cooling EKWB AIO 360 RGB (9 ekwb vardar RGB fans)
Memory Gskill Trident Z neo CL18 3600mhz 64GB
Video Card(s) MSI RTX 3080 Gaming Z Trio 10G LHR
Storage Wayy too many to list here
Display(s) Samsung Odyssey G5 1440p 144hz 27 x2 / Samsung Odyssey CRG5 1080p 144hz 24
Case LianLi 011D white w/ Vertical GPU
Audio Device(s) Sound Blaster Z
Power Supply Corsair RM1000x (2021)
Mouse Logitech G502 Hyperion Fury
Keyboard Ducky One 2 mini Cherry MX silent
VR HMD Quest 2
Software Win10 Pro / Ubuntu 20.04
Benchmark Scores Timespy 17 219 https://www.3dmark.com/spy/49036100
Notbad notbad
 
Joined
Jan 2, 2018
Messages
278 (0.12/day)
wow, they have actually created a properly powered board.
So instead of lets say 4 power bricks (for 4 devices) that wont even fit into extension sockets, you can have one PD brick with 4 USBC outputs.

RPi should learn from this manufacturer instead of making their specialized power brick that is too damn huge. It covers 3 SOCKETS FFS.
I have plenty of Gan chargers yet i can't use them, because RPi were too lazy to put a PD chip on the board.
 
Joined
Jan 3, 2021
Messages
2,996 (2.30/day)
Location
Slovenia
Processor i5-6600K
Motherboard Asus Z170A
Cooling some cheap Cooler Master Hyper 103 or similar
Memory 16GB DDR4-2400
Video Card(s) IGP
Storage Samsung 850 EVO 250GB
Display(s) 2x Oldell 24" 1920x1200
Case Bitfenix Nova white windowless non-mesh
Audio Device(s) E-mu 1212m PCI
Power Supply Seasonic G-360
Mouse Logitech Marble trackball, never had a mouse
Keyboard Key Tronic KT2000, no Win key because 1994
Software Oldwin
wow, they have actually created a properly powered board.

So instead of lets say 4 power bricks (for 4 devices) that wont even fit into extension sockets, you can have one PD brick with 4 USBC outputs.

RPi should learn from this manufacturer instead of making their specialized power brick that is too damn huge. It covers 3 SOCKETS FFS.
I have plenty of Gan chargers yet i can't use them, because RPi were too lazy to put a PD chip on the board.
Adapters exist, such as this one - USB C with PD at the input, fixed voltage (but barrel jack in this case) at the output. Certainly not an ideal, or very reliable, solution but might come in handy.
 
Joined
Dec 26, 2016
Messages
281 (0.10/day)
Processor Ryzen 3900x
Motherboard B550M Steel Legend
Cooling XPX (custom loop)
Memory 32GB 3200MHz cl16
Video Card(s) 3080 with Bykski block (custom loop)
Storage 980 Pro
Case Fractal 804
Power Supply Focus Plus Gold 750FX
Mouse G603
Keyboard G610 brown
Software yes, lots!
Wow, it's very nice that they basically do everything right that I always hated about the original Pis:

- All connectors to one side. Finally an SBC that can be put in a box or even in-wall and not a box that has wires coming in from all sides. I always hated that on the Pis!
- PCIe, M.2
- Even more M.2
- Dual Gigabit
- PoE
- RTC
- SIM
- MMC
- normal sized HDMI

So many interfaces and all on one side of the pcb! Take this Raspi-Foundation, it can be done! Why dont you do it?

Wow, original Pis seem really low end by comparison. Homefully the software is ok too. Raspberry Pis became more and more powerful and even more expansive over the generations. But never made good on the above mentiond shortcomings.

If I had use for an SBC, I would buy this!
 
Last edited:
Joined
Apr 18, 2019
Messages
2,222 (1.15/day)
Location
Olympia, WA
System Name Sleepy Painter
Processor AMD Ryzen 5 3600
Motherboard Asus TuF Gaming X570-PLUS/WIFI
Cooling FSP Windale 6 - Passive
Memory 2x16GB F4-3600C16-16GVKC @ 16-19-21-36-58-1T
Video Card(s) MSI RX580 8GB
Storage 2x Samsung PM963 960GB nVME RAID0, Crucial BX500 1TB SATA, WD Blue 3D 2TB SATA
Display(s) Microboard 32" Curved 1080P 144hz VA w/ Freesync
Case NZXT Gamma Classic Black
Audio Device(s) Asus Xonar D1
Power Supply Rosewill 1KW on 240V@60hz
Mouse Logitech MX518 Legend
Keyboard Red Dragon K552
Software Windows 10 Enterprise 2019 LTSC 1809 17763.1757
Related:
(1st 'config/use' that comes to mind)

Performance analysis of the RISC SoC used:
 
Joined
Nov 18, 2010
Messages
7,297 (1.46/day)
Location
Rīga, Latvia
System Name HELLSTAR
Processor AMD RYZEN 9 5950X
Motherboard ASUS Strix X570-E
Cooling 2x 360 + 280 rads. 3x Gentle Typhoons, 3x Phanteks T30, 2x TT T140 . EK-Quantum Momentum Monoblock.
Memory 4x8GB G.SKILL Trident Z RGB F4-4133C19D-16GTZR 14-16-12-30-44
Video Card(s) Sapphire Pulse RX 7900XTX. Water block. Crossflashed.
Storage Optane 900P[Fedora] + WD BLACK SN850X 4TB + 750 EVO 500GB + 1TB 980PRO+SN560 1TB(W11)
Display(s) Philips PHL BDM3270 + Acer XV242Y
Case Lian Li O11 Dynamic EVO
Audio Device(s) SMSL RAW-MDA1 DAC
Power Supply Fractal Design Newton R3 1000W
Mouse Razer Basilisk
Keyboard Razer BlackWidow V3 - Yellow Switch
Software FEDORA 40
Very cool, Dual NICs is great. If it can work as an OpenBSD or FreeBSD firewall I'll definitely pick one up.

You see realtek NIC there, as a BSD man you should immediately steer away from it.
 
Joined
Apr 18, 2019
Messages
2,222 (1.15/day)
Location
Olympia, WA
System Name Sleepy Painter
Processor AMD Ryzen 5 3600
Motherboard Asus TuF Gaming X570-PLUS/WIFI
Cooling FSP Windale 6 - Passive
Memory 2x16GB F4-3600C16-16GVKC @ 16-19-21-36-58-1T
Video Card(s) MSI RX580 8GB
Storage 2x Samsung PM963 960GB nVME RAID0, Crucial BX500 1TB SATA, WD Blue 3D 2TB SATA
Display(s) Microboard 32" Curved 1080P 144hz VA w/ Freesync
Case NZXT Gamma Classic Black
Audio Device(s) Asus Xonar D1
Power Supply Rosewill 1KW on 240V@60hz
Mouse Logitech MX518 Legend
Keyboard Red Dragon K552
Software Windows 10 Enterprise 2019 LTSC 1809 17763.1757
You see realtek NIC there, as a BSD man you should immediately steer away from it.
Even from a Windows PC enthusiast-gamer's perspective:
Realtek NICs are very 'bleh' to 'meh'.
 
Top