GnuBee Personal Cloud 1

by GnuBee

A low-cost, low-power NAS for 2.5" drives

View all updates Apr 13, 2017

100% Blob-free!

We’re happy to confirm the GnuBee Personal Cloud 1 will ship with 100% libre software and firmware - there won’t be any binary blobs! This has real-world ramifications, the most immediate of which is it actually lowers the cost of production, which is in part why we can lower our funding goal.

Saying Goodbye to the One, Lonely Blob

As we originally described on the main campaign page:

In the current prototype, there is exactly one binary blob, but we have a clear path to removing it and plan to remove it before shipping the first production units. In particular, the binary blob is for the ASM1061 PCI-to-SATA bridge. As it turns out, a libre kernel driver for this particular chip was mainlined since our original board design, so it should simply be a matter of removing the associated SPI NOR flash chip and using the kernel driver directly to control the PCI-to-SATA bridge.

Well, we tested the kernel driver and it works quite well, with only a minor hit in performance. Here are some initial read and write test results using the same Western Digital 500 GB WDC WD5000BEVT drive and methodology used in our previous benchmarks:

InterfaceWith Blob (using SPI NOR chip)Without Blob (using libre kernel driver)
Read79.2 MB/s76.2 MB/s
Write56.4 MB/s56.2 MB/s

This means we will completely remove the SPI NOR flash chip used to hold the ASM1061 proprietary blob.

Same Pricing, Lower Funding Goal

As with most hardware projects like the GB-PC1, there is a delicate balance between the minimum number of units our factory is willing to make at a reasonable price (minimum order quantity or MOQ) and the price per unit. In general, when one goes up, the other goes down. Given GnuBee’s stated goal of "FLOSS Devices at Reasonable Prices," we really want to keep the price as low as possible. Initially, this meant an MOQ of 500 units, which is what the original funding goal of $75,000 represented. We’re trying to make a business out of this, so there is of course some margin built-in so we can cover non-manufacturing costs (like flights), invest in the next round of production without needing another crowdfunding campaign, and begin work on the next product.

In any case, between no longer needing the SPI NOR flash chip and renegotiating with our manufacturing partner, we’re able to reduce our MOQ from 500 to 300 without raising our prices at all. After consulting with the Crowd Supply team to double check our numbers and get their sign-off, we’re setting the campaign goal to $32,000. There won’t be as much left over to put into new products or the next batch, but we’re hoping sales after the campaign will help make up for that.

More to Come

We have several more updates lined up, including benchmarks for encrypted drives and walk-throughs of some popular use cases for the GB-PC1. In the meantime, please get in touch if you have any questions, comments, or suggestions. Thanks for your support!

Larry and the GnuBee team

$72,892 raised

of $32,000 goal

227% Funded! Order Below

Product Choices


GnuBee Personal Cloud 1

One fully populated and assembled GB-PC1 Bare PCB, two anodized aluminum side plates, six threaded brackets and bracket screws, and 24 drive mount screws. Power supply, microSD card, and drives not included. Requires screwdriver for assembly.


GnuBee Power Adapter

An energy efficient (level V) global input power supply that puts out up to 3 A at 12 VDC through a 5.5 mm x 2.1 mm center-positive barrel jack. Perfect for powering your GnuBee Personal Cloud 1.


GnuBee microSD Card

A 2 GB microSD card imaged with Debian. Run your GnuBee Personal Cloud 1 directly from the microSD card. Copying Debian to an SSD or HDD is recommended, but this microSD card will get you started.


GnuBee USB-to-UART Adapter

Debugging made easy! The GnuBee USB-to-UART adapter comes equipped with a 3.5 mm plug to connect to the GnuBee Personal Cloud 1. This debugging method is ubiquitous in the world of embedded systems.



FLOSS devices at reasonable prices.

L. D. Pinney

Founder and CTO

Xiaoping Pinney

Chairman Ping

Douglas Gazineu

Software Developer

See Also

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