DreamSourceLab DSLogic U3Pro32 USB-Based Logic Analyzer with 1GHz Sampling Rate, 2Gbits Memory, USB 3.0 Interface, 32 Channels

Cons:* Not a USB-C device. (newly added since I first wrote the review) If you use a USB-C to USB-C cable on a computer that has USB-C; the device enumerates as a slow speed USB 2.0 and thus you loose the high speed features of the device and software. Using the included cable (and any other like it) it will correctly enumerate as USB 3.0 high speed device. Not a problem for many people; but my computer only has USB-C on it so NOW have to always put a hub between it and the computer to get the higher speeds. I talked to support and they gave me no answer or solution. Their scope demonstrates the same issue so its not a fault in the unit.* The mini-clips are either grey or black. The fly wires are color coded but tiny and short, as they should be; but this makes them hard to differentiate when connecting to your circuit. For the cost, at least they should have had the first 8 channels with color coded clips.* The USB-C cable included has the plug that is stubby and with the only a small shift of the unit it can come unplugged from the USB at the unit. This would have been ok, except they embedded the USB-C port inset making the normal length required. This is fixable by just using another USB-C cable as every other one I had on hand was longer. (see pictures)* When sampling at very high rates (250mhz+), spurious short pulses appear at the tail of expected pulses. These spurious pulses I believe are sampling interpretation errors as the scope reveals a normal sloped falloff of the expected pulse with no spikes that should cause this. These cause stack interpretation problems with the data. It shows up in either stream or buffered mode. It can be worked around by using a slower capture rate but you loose accuracy in the pulse width measurement. Not the biggest issue, as often you don't need pulse width measurement accuracy at the same time as data interpretation. But still annoying.* The software doesn't support two finger pinch and zoom, so not very usable on a Windows 10 tablet.* The 32 channel version was the only one available even though they make a cheaper 16 channel unit.Pros:* The wire system is novel for USB based units, and works well.* Their software is functional and there is an open source software package available.* For the cost and speed specs it is hard to beat.The flaws don't outweigh the functionality and most are fixable or can be work around with small purchases. Its a keeper; but they could have easily fixed two cons so they lost a star for that. And stating that its USB-C just due to the connector but not supporting connecting to a USB-C host problem they lost another star.

As far as my requirements are concerned, this DSLogic Plus does a very nice job and is well worth the money considering the multitude of choices available for a tool similar to this, both more and less expensive. The leads and clips appear to be of good quality and the semi-hard case is also a very nice as you can store the analyzer, clips and the leads without bending or folding the 9" test leads even with the clips attached. The clips appear to be identical to EZ Hook Micro Hooks but without the markings. You will need more clips preferably of more colors to be able to equip all the leads with clips simultaneously.

What I like most is developing/debugging right at my desk with the IDE at hand rather than at a workbench. The coax signal lines with pins inserted in the sockets allow one to plug into breadboards easily without the grabbers. Operation is straightforward and intuitive and 2.5 nS resolution in buffer mode is great. One can capture over 100 mS of data at 400 MHz sampling on 4 channels. Just started using but it's looking good. I put some rubber feet on the bottom to keep it from sliding around.

Very pleased with this tool so far. I have used it to snoop high speed (3MBit) RS485 bus and it works excellent. The serial decoders included in the software are highly functional as well. Great product for the price.

This affordable logic analyzer worked very well. At first I had a lot of trouble with a flaky USB connection. Then I saw the fine print that they recommend NOT going through a USB hub, even if it is a USB 3.0 hub. So I ordered a USB 3.0 extension cable. When connected directly to a USB port on the motherboard the connection was solid and reliable.

I bought this to debug my incorrect programming of a USB controller. It allowed me to find out what I was doing wrong in under 2 days of work rather than at least 2 weeks of unsuccessful debugging without it. The only thing negative about it is that the carrying case strongly smells like some combination of cigarette smoke and formaldehyde.

Flashing red LED, never connected. Software looked nice though. I’d give it another shot in the future. Support wanted me to try another OS instead of debugging.

Works exceptionally well. I compare to Saleae logic which has trouble keeping up with sample rate. The Dreamsourcelab debugger has never lost a sample and actually outperforms its specs. I am using only the digital 16 channel version, and the decoders work extremely well and software is pleasant to use. Going to try their dscope to see if it is as well built as the digital