SiFive HiFive Unmatched RISC-V Developer Boards Begin Shipping

Written by Michael Larabel in RISC-V on 21 May 2021 at 01:33 PM EDT. 25 Comments
Announced last year was the HiFive Unmatched as the most compelling RISC-V development board to date. Following supply chain issues and everything else brought on by the pandemic, this very interesting RISC-V developer board is now shipping to customers.

The HiFive Unmatched is a mini-ITX board built around the SiFive FU740 SoC with four U74-MC cores and one S7 core while having 16GB of DDR4 RAM. The board has a PCI Express x16 slot (albeit at PCIe Gen3 x8 speeds), NVMe M.2 slot, micro-SD slot, Gigabit Ethernet, four USB 3.2 Gen 1 ports, and other modern connectivity. It has a decent amount of power to it, can be conveniently mounted inside a mini-ITX case, and feature set makes it quite a nice developer board for those wanting to dive into the RISC-V ecosystem.

Originally the HiFive Unmatched was supposed to ship in Q4 of last year. But then in December it was upgraded to 16GB of RAM and postponed to mid-Q1. Now in mid-Q2, I received word from SiFive this morning that the boards are finally shipping. This latest quarter slip is attributed to the COVID-19 supply chain disruptions plaguing the industry.

I am told that the first boards are now shipping and they expect to have all initial orders covered by mid-June. SiFive has also completed all necessary testing and FCC/CE paperwork.

Besides covering the initial pre-orders for the HiFive Unmatched, they expect to have enough "spares" ready following that mid-June equilibrium for covering the upcoming orders in a timely manner.

Pricing on the HiFive Unmatched RISC-V developer board is ~$665 USD from Mouser and Crowd Supply. For those looking at a cheaper way to get involved with some RISC-V dabbling, SiFive also has a kids coding kit that is powered by a RISC-V processor albeit much less capable and catering just towards some basic programming exercises.

We should have our hands on the HiFive Unmatched in the coming weeks for RISC-V Linux benchmarking and looking at the RISC-V Linux distribution support.
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Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

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