Back in January, we posted about the upcoming crowdfunding campaign for Wavelet Lab's M.2 form factor xSDR software-defined radio product. The campaign went live a few days ago, with the xSDR priced at US$549 and a delivery date of July 15, 2026.

xSDR is a compact, single-sided M.2 software-defined radio designed for seamless integration into modern computing platforms. The “x” stands for extended; xSDR delivers extended bandwidth in the same minimal footprint as our previous model, uSDR. With 2x2 MIMO RX/TX channels, a wide 30 MHz–3.8 GHz tuning range, and up to 122.88 MSPS sampling and an updated FPGA, xSDR is a flexible platform for embedded RF, wireless research, signal intelligence, and rapid prototyping.

Designed to fit the M.2 2230 A+E-key form factor (30 mm × 22 mm), xSDR plugs directly into laptops, tablets, smartphones, and embedded computers. When paired with the wsdr.io web platform, it enables instant creation, control, and sharing of RF applications right from a browser, with no complex drivers or software setup required.

We note that sSDR, their higher end software defined radio product is due to be released for crowdfunding in March.

Thank you to Andrew from Wavelet Lab, the original creators of uSDR and xMASS SDR, for writing in and sharing news about two of their soon-to-be-released SDR hardware products, xSDR and sSDR. 

If you are unfamiliar with Wavelet Labs' previous products, uSDR is a small M.2 SDR board based on the Lime LMS6002D chip. It has both TX and RX capabilities, a 300 - 3700 MHz tuning range, and up to 28 MHz of bandwidth. xMASS, on the other hand, uses multiple modular 'xSDR' boards to create an up to 8x8 MIMO receiver. Previously, xSDR was only available for purchase with an xMASS board, but the new crowdfunding campaign makes xSDR available as a standalone product.

Andrew summarizes:

xSDR - a compact SDR module derived from the xMASS SDR (2 RX / 2 TX). We’ve seen many requests for the module itself, so we decided to make it available as a standalone product.

We add that xSDR has 2x2 MIMO RX/TX capabilities, an extended tuning range of 30 MHz to 3.8 GHz, and a channel bandwidth of up to 90 MHz. It retains the same M.2 connector and form factor as the uSDR. 

sSDR - an M.2 form-factor SDR covering up to 11 GHz. This is our most ambitious bet so far, as there’s currently no comparable alternative on the market in this price range (~$1k).

sSDR has even higher rated specs, with 2x2 MIMO RX/TX capabilities, a tuning range of 30 MHz to 11 GHz, and a bandwidth of up to 120 MHz.

Andrew notes that xSDR is due to be released at the end of January, and sSDR in March.