RVA23-compliant K3 Pico-ITX SBC and K3-CoM260 SoM feature SpacemiT K3 octa-core RISC-V AI SoC, up to 32GB RAM, 256GB UFS

SpacemiT has now officially launched the K3 Pico-ITX SBC and K3-CoM260 system-on-module with the RVA23-compliant, SpacemiT K3 octa-core X100 CPU with up to 60 TOPS of AI performance, up to 32GB LPDDR5, 256GB UFS, and PCIe Gen3 x4 NVMe SSD support.

The board also features an eDP connector, a 10GbE SFP+ cage, a Gigabit Ethernet RJ45 port, built-in WiFi 6 and Bluetooth 5.2 wireless connectivity, two USB Type-C connectors, four USB 2.0 ports, an M.2 Key-B socket coupled with a NanoSIM card slot for 4G LTE or 5G cellular connectivity, and more.

SpacemiT K3 RVA23 single board computer (SBC)

K3 Pico-ITX SBC specifications:

  • SoC – SpacemiT K3
    • CPU
      • 8x 64-bit RISC-V X100 “big” cores clocked up to 2.4 GHz, RVA23 compliance; 130 KDMIPS performance (similar to RK3588)
      • 8x RISC-V A100 AI Cores with support for up to 1024-bit RVV1.0 parallel computing, optimized for matrix operations.
    • GPU – Imagination Technologies BXM4-64-MC1 GPU with Vulkan 1.3, OpenCL 3.0, and OpenGL ES 1.1/2.0/3.2 support
    • VPU
      • Video decoder – H.265, H.264, VP9 up to 4K @ 120 FPS
      • Video encoder – H.265, H.264 up to 4K @ 60 FPS
    • AI – Up to 60 TOPS (INT4) of AI performance using dedicated TCM and DMA acceleration channels;
  • System Memory – 8GB, 16GB, or 32GB LPDDR5 @ 6400 MT/s (51GB/s bandwidth)
  • Storage
    • 128GB or 256GB UFS 2.2 storage
    • M.2 Key-M 2280 (PCIe Gen3 x4) socket for NVMe SSD
    • SPI NOR flash
    • MicroSD card slot (yes, on the module)
  • Display Interface
    • eDP connector
    • USB-C port with DP 1.2
  • Audio – On-board audio codec, internal audio input/output
  • Networking
    • 10GbE SFP+ cage via RealTek RTL8127 controller
    • Gigabit Ethernet RJ45 port via RealTek RTL8211 controller
    • WiFi 6 and Bluetooth 5.2 module with two IPEX antenna connectors
    • Optional 4G LTE/5G cellular via M.2 Key-B socket
  • USB
    • 2x USB-C ports
      • 1x USB 3.2 port with DP 1.2 Alt. mode and USB PD
      • 1x USB 3.2 OTG port
    • 4x USB 2.0 Type-A ports
  • Expansion
    • M.2 M-Key 2280 (PCIe Gen3 x4) socket
    • M.2 B-Key 2242/3052 (PCIe Gen2 x2 + USB 2.0) socket
    • 2x “RTI” FPC connectors supporting EtherCAT, CAN-FD, and other interfaces for microsecond-level motion control and robotics
    • EC-IO connector for the Embedded Controller managing fan, I2C, GPIO, button, and LED
  • Debugging – UART and JTAG connectors
  • Misc
    • 3x buttons for power, reset, and firmware update
    • RTC battery connector
    • Fan-cooled heatsink
    • 4-pin SYS connector
  • Power Supply up to 65W
    • 12V DC up to 7A via 2-pin ATX connector
    • USB PD via USB-C port
  •  Dimensions
    • Board: 100 x 86 mm (Pico-ITX Plus form factor)
    • With heatsink: 103 x 90.5 x 35mm
  • Temeperature Range – Consumer: -20°C to + 70°C; industrial: -40°C to +85°C
  • Certifications – CCC, FCC, CE

SpacemiT K3 SBC block diagram
K3 SoC block diagram
Spacemit K3 system-on-module
The SpacemiT K3 is also available on the K3-CoM260 260-pin SO-DIMM module

The K3 SBC and SOM come pre-loaded with Bianbu 3.0 (Ubuntu-based), but Ubuntu 26.04 (thanks to RVA23 compatibility), OpenHarmony 6.0, OpenKylin 2.0, Deepin 25, and Fedora operating systems are also available. The company highlights support for RV Hypervisor 1.0, AIA, and RV IOMMU extensions, as well as hardware virtualization for CPU, memory, and I/Os.

SpacemIT K3 block diagram
SpacemIT K3 block diagram
SpacemiT K3 SoM carrier board
SpacemiT K3 CoM260 kit using Radxa C200 carrier board; The RISC-V module is compatible with Jetson Orin Nano/NX carrier boards

Early benchmarks for the SpacemiT K3 indicate Rockchip RK3588-level of multi-core performance, and results slightly lower than a Raspberry Pi 5 for single-core performance. What you get is much faster storage, networking, a proper video processing unit with 4K decoding and encoding, and a 60 TOPS of AI performance. Bandwidth should also be significantly better, but early memset/memcpy results are only marginally better than those of a Raspberry Pi 5. Some data was also shared to show the performance delta between the SpacemiT K1 and K3 SoCs when using the Jupiter NX and Jupiter NX2 modules.

Spacemit K1 vs K3 performance features
Spacemit K1 (gray) vs K3 (color gradient)

The way the K3 Pico-ITX SBC and K3-CoM260 system-on-module kit are distributed is interesting. SpacemiT designed the board, but at least three companies are now selling them for respectively $299+ and $309+, depending on configuration. Here’s the current price table from Sipeed as of today (May 11, 2026):

SpacemiT K3 SoM SBC price

You’ll find purchase links on AliExpress (Banana Pi, different link for the SoM devit), Sipeed, and Arace (Milk-V). Banana Pi calls the SoM devkit the BPI-SM10, while Milk-V calls the SBC Jupiter 2 and the module Jupiter 2 NX. The SBC is identical between the three companies, but the SoM devkit designs vary. The Jupiter 2 SBC is sold as a complete kit with an enclosure. We should receive the Pico-ITX (Plus) board from SpacemiT, so you can expect a review sometime in June, and maybe an unboxing before that (if warranted).

K3 SBC active cooler
Bottom wide of K3 Pico-ITX SBC with active cooler

Update: the article was initially published on January 30, 2026, and updated following the official launch through various distributors

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