KGUSS Topping HS02 USB 2.0 Audio Isolator - withstands up to 1500VDC, USB-B and Type-C Input, USB-A and Type-C Output, Compatible with PCM32bit 768kHz DSD512

I never post Amazon reviews but this one deserves it. If you use a high performance PC and hear GPU whine through your audio system, especially with an audio interface in the chain, this might help. This little product completely solved my issue. I run a powerful setup with a Motu M2 interface, Blue Sona mic, 2000W audio system with D class mono blocks, and a top tier AMD build with a 5090 FE GPU on an Asus board. Every time I scrolled in Chrome or pushed the GPU with work or games, the noise would show up. I was ready to swap out all my cables and even replace the PSU. Instead, I plugged this in right before the Motu M2 USB C input and the noise disappeared. Gone completely. Thank you to the maker of this product. You saved me hours of work and a lot of money.

I recently added a Spark 40 amp to my setup, and as soon as I connected it to my computer via USB, I got a lot of computer noise through the Spark. When using both compression and boost on the Compadre pedal going into the Spark, the noise became absolutely intolerable. The first product I tried as a solution was the iDefender+ C > A which is supposed to be backward compatible with USB 2 but did not work with the Spark 40. I just received the HS02, connected it, and it works! The Spark 40 is detected, and there is very little computer noise with both compression and boost engaged on the Compadre pedal which naturally adds a fair amount of other noise anyway. With only compression engaged, the noise is very quiet, and with only boost or neither compression nor boost, the noise is pretty much inaudible. By the way, I have found that without connecting any additional power, the HS02 is able to supply sufficient power for a small hub with 2 self-powered devices connected to the hub. The unit is smaller than it seems in the picture, and It is not getting in the way of other things on my desk. Since I just received the HS02, I can not yet say anything about its long-term reliability. Its build quality seems good though. USB plugs fit smoothly and snugly, and the case is obviously not in any danger of ever coming apart.

This device works as advertised. It is similar to the iFi iGalvanic 3.0 which I've enjoyed for several years. However, that device failed twice and a replacement is no longer available. The Topping HS02 sounds about equal to the iGalvanic 3.0 when it worked. This device is much more affordable and appears to be bullet-proof. It does improve low-level detail retrieval and yields a larger sound stage on many DACs. It's a great value!

Ahh after years it finally solved my problem. This is the device for you if you have ground loop hum and/or coil whine from your source. Especially if you are a gamer, your pc is grounded and messing with your dac+amp. This got rid of all the noise, just.....nothingness now....even with the amp cranked to max. Seriously if you are plagued by a pc causing issues for your audio playback, get this. I did take one star away because the usb cable supplied was very flimsy and the tolerances were off on the usb-a side, it would wiggle in the port and cause the device to cut out.

Update: I replaced it with another unit. After approximately 24 hours of use, I haven't encountered any random failures so far. However, more time is needed to truly assess its reliability. I also noticed other reviews mentioning stability issues, so it seems this isn't an isolated case. I think I'll stick with a one-star rating because, as a USB isolator, its price is already one to two times higher than other brands. I've used several USB isolators from different brands and price ranges—either they work well, or they don’t. But this is the first time I've come across one with such instability, especially given that others have reported similar issues. For a product at this price point, it’s clear that quality control has not been adequately maintained. Unstable. When it works, it works well... but it stops working after about an hour. Other times, it lasts 3-4 hours. Each time, I have to restart my computer for it to work again. There's no other way.. Maybe I should try another one.

I have a spectrum analyzer hooked up as part of my speaker chain—it’s fed directly from the RCA output of my preamp (the power amps are fed from the XLR output). I was seeing noise occur on the spectrum analyzer whenever the streamer was busy or loaded (such as when scrolling long playlists and such). I read some of the other reviews stating that this device eliminated the noise they were seeing from their sources (usually PCs set up as streamers), so I figured I’d get one and give it a try. It came in, I hooked it up between my streamer and my DAC, and fired it up. Well golly-gee-Willy, it really worked! Zero noise showing up on my spectrum analyzer no matter how crazy I got on the streamer controls! To make sure I wasn’t crazy, I removed it and the noise came back, so this thing legitimately eliminated electronic noise from passing to the DAC from the source!

Love this item removes noise and crackle and ground noises!!! Works great fir eliminating noise between your laptop synth keyboard and amp or speaker audio out .

I have an external audio interface, the Arturia AudiFuse Studio. It uses a USB-C connection and worked great for months until I upgraded the video card on my PC to an Nvidia 4060. Whenever the GPU was under load, the audio interface would screech horribly. This was no ground loop, but EMI coming from the PC, due to the video card creating noise on the PCI bus. I ordered this item hopeful that this would fix the problem and it absolutely worked. My audio interface is deathly quiet when it should be regardless of what the GPU is doing. The only downside to this device is its price, but I refuse to lower my review because it works perfectly.