The Milk-V Duo S is a tiny, square-shaped single-board computer that measures just 43 x 43mm (1.7″ x 1.7″). But there’s enough room on the little computer for a 10/100 Ethernet jack, USB Type-C and Type-A ports, a microSD card reader, and two sets of expansion headers.

But the most unusual thing about this small, cheap, low-power computer is that it’s one of the first devices powered by a Sophgo SG2000 processor that combines two RISC-V CPU cores with a single ARM Cortex-A53 core and an integrated neural processing unit. The board is up for pre-order from Platima for $11 and up.

The starting price is for a model with no storage or wireless capabilities. But there are a few different pricing/configuration options available:

  • Milk-V Duo S (no WiFi or storage) for $11
  • Milk-V Duo S with WiFi 6 & BT 5 for $14
  • Milk-V Duo S with 8GB eMMC (no WiFi) for $16
  • Milk-V Duo S with 8GB eMMC, WiFi 6 & BT 5 & PoE HAT for $20
Milk-V Duo S with PoE (Power over Ethernet) HAT

Each model features 512MB of DDR3 memory and the SG200 processor, which features:

  • 1 x C906 RISC-V core @ 1 GHz
  • 1 x C906 RISC-V core @ 700 MHz
  • 1 x ARM Cortex-A53 core @ 1 GHz
  • 8051 6KB MCU
  • 0.5 TOPS NPU

Note that you cannot use the RISC-V and ARM cores at the same time. Instead the chip allows you to choose which cores will be active when the computer starts up.

Another feature that’s one-or-the-other-but-not-both are the USB ports. You can either use the USB Type-C port for power and data or use the USB 2.0 Type-A port for data. But you can’t use them both at the same time. Milk-V says you can switch which one is active with a terminal command.

Other features include:

  • 2 x MIPI-CSI 2-lane connectors
  • 1 x MIPI-DSI 4-lane connector
  • 39 pre-soldered GPIO header pins

Milk-V says the board supports 5V/1A power input and features a couple of hardware buttons including a boot switch, recovery key, and reset key.

The Milk-V Duo S joins two other models in the Duo lineup. The original Duo and Duo 256M both have a different layout, with stick-shaped boards that measure 21 x 51mm (0.8″ x 2.1″) and no Ethernet jacks.

The Duo S has also twice as much RAM as the Duo 256M and eight times as original Duo. But the Duo 256M has a higher-performance NPU with up to 1 TOPS of AI performance.

Platima says the Milk-V Duo S should begin shipping in March, 2024.

via LinuxGizmos

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  1. it is open? mailine linux? , where is lipo power and screen socket?
    ech, still vocore2 is better

  2. interesting. I’m thinking they could do some optimization here too…given that all cores cannot be active, if their layout folks are clever probably allows higher core operating temperatures. But I think that may come later, idea is revenue sales before the overengineering.

  3. NICE! I really like the DSI connector. It always boggles my mind why the Pi Zero’s (and all clones) don’t have a DSI connector.

  4. I think the original Milk-V Duo only has 64MB of RAM. That means this version has 8 times as much RAM.

  5. Wow, certainly gets the most heterogenous core award. Do people use these for remote cameras?