<html><body><div dir="auto">That would be those 8 channel, 24MHz USB ones that work with Sigrok (and other software...). Cheap, nasty, but work upto a couple of Mb/s. Things like:</div><div dir="auto"><br></div><div dir="auto" style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);"><a href="https://m.aliexpress.com/item/1005004568431970.html?spm=a2g0n.productlist.0.0.4483RGfERGfEwA&browser_id=80653045995842c89e48fe2b61080ecc&aff_trace_key=db60184b841d49b78ae8881b2688f380-1663011701720-07121-UneMJZVf&aff_platform=msite&m_page_id=cnwtg813r4cazfsr183333ab3cd253424fea2455b9&gclid=&pdp_npi=2%40dis%21NZD%21882%218.82%21%21%213.95%21%21%40210318d116630118300464319e5622%2112000029657234509%21sea&curPageLogUid=9eR0z4BxzDfz&algo_pvid=553c34da-c9ba-4b72-9d13-33b69e9aa54a">https://m.aliexpress.com/item/1005004568431970.html</a><br></div><div dir="auto" style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);"><br></div><div dir="auto" style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);">You also get more than 2 channels, so you can capture and decode 3-wire protocols.</div><div dir="auto" style="color: rgb(33, 33, 33); background-color: rgb(255, 255, 255);"><br></div><div><br></div><div id="ms-outlook-mobile-signature" dir="auto">Get <a href="https://aka.ms/AAb9ysg">Outlook for Android</a></div></body></html>