Worked perfectly to remove a super high pitched whine from my PC's dirty USB ports. The horrible noise was louder than the music before.
Not sure if it was EMI or a ground loop, but it's all gone now! I'm impressed and surprised, as this computer/room has proven to be a very dirty RF/EMI environment! Just tested a bunch of the noisiest USB ports and so far they've all come clean with this little guy. Even the noisy LED-backlit gaming keyboard output comes clean, as does a USB3 hub with a bunch of devices on it.
My setup is Desktop PC to monitor to an Audioengine D3 to a DarkVoice 336SE tube amp. The music comes through clean and silent now.
Also works fine with my XDuoo XD-05 DAC/Amp, but that wasn't noisy to begin with as it's battery powered and doesn't drink the dirty USB juice or connect to ground power-wise (it uses a cell phone style wall wart to charge the battery on a separate circuit).
The little black box labeled 'mornsun' does appear to get a little warm, and yeah that blue LED is way too bright, but otherwise this thing is great. I can always apply some black electrical tape if I need to block the light.
Consider a similar item
Amazon's Choice
Frequently bought together
This item: HiLetgo ADUM3160 B0505S 1500V USB to USB Voltage Isolator Module Support 12Mbps 1.5Mbps
$13.99
Get it as soon as Monday, Oct 14
In Stock
+
$19.99
Get it as soon as Monday, Oct 14
In Stock
+
$9.99
Get it as soon as Monday, Oct 14
In Stock
Total price: $00
To see our price, add these items to your cart.
Choose items to buy together.
Works with USB 2.0; Be careful of exposed compenents; Width concerns
I purchased an XLR to USB cable to connect a mixer directly into a laptop to broadcast with OBS. When I connected the mixer output to the USB port, I was getting a rumble with fax-like noise on top. I'm using an older Dell laptop with USB 2.0 only. When the laptop was on battery power, the signal was clean. When I used my power adapter on the laptop, the noise could be heard. While the laptop was using the power adapter, I plugged in the group loop device between the XLR cable and the laptop USB port. To my delight, the noise disappeared.The device is wider than flash drive and in my case, partially covered the USB port next to it. My workaround was to use a USB port bank. Some models I've seen sold on Amazon also ship with a short cable to eliminate this issue.I cannot say if the device works on USB 3.0 ports or not. In my case, the device worked fine with the DIP setting on "1" and with a blue light on USB 2.0. Setting the DIP switch to ON apparently is for high speed mode (12Mbps, red light) and "1" is for low speed (1.5Mbps, blue light). My device was shipped with a red DIP switch, not blue as in the picture. However, the function appears to be the same.The device has exposed components on the board. The sip/dip module (the large, tall, black component) seems particularly vulnerable. When I opened the package, it was bent about 15 degrees to the side. I pushed it back in place and it still works but it's not an ideal situation. I plan on printing a case for it as soon as I can.With all that said, it accomplishes the same task as more expensive devices and is economical enough purchase multiple units if necessary.
Top reviews from the United States
There was a problem filtering reviews right now. Please try again later.
Reviewed in the United States on April 4, 2018
Reviewed in the United States on October 22, 2020
The device is wider than flash drive and in my case, partially covered the USB port next to it. My workaround was to use a USB port bank. Some models I've seen sold on Amazon also ship with a short cable to eliminate this issue.
I cannot say if the device works on USB 3.0 ports or not. In my case, the device worked fine with the DIP setting on "1" and with a blue light on USB 2.0. Setting the DIP switch to ON apparently is for high speed mode (12Mbps, red light) and "1" is for low speed (1.5Mbps, blue light). My device was shipped with a red DIP switch, not blue as in the picture. However, the function appears to be the same.
The device has exposed components on the board. The sip/dip module (the large, tall, black component) seems particularly vulnerable. When I opened the package, it was bent about 15 degrees to the side. I pushed it back in place and it still works but it's not an ideal situation. I plan on printing a case for it as soon as I can.
With all that said, it accomplishes the same task as more expensive devices and is economical enough purchase multiple units if necessary.
Works with USB 2.0; Be careful of exposed compenents; Width concerns
Reviewed in the United States on October 22, 2020
I purchased an XLR to USB cable to connect a mixer directly into a laptop to broadcast with OBS. When I connected the mixer output to the USB port, I was getting a rumble with fax-like noise on top. I'm using an older Dell laptop with USB 2.0 only. When the laptop was on battery power, the signal was clean. When I used my power adapter on the laptop, the noise could be heard. While the laptop was using the power adapter, I plugged in the group loop device between the XLR cable and the laptop USB port. To my delight, the noise disappeared.Reviewed in the United States on October 22, 2020
The device is wider than flash drive and in my case, partially covered the USB port next to it. My workaround was to use a USB port bank. Some models I've seen sold on Amazon also ship with a short cable to eliminate this issue.
I cannot say if the device works on USB 3.0 ports or not. In my case, the device worked fine with the DIP setting on "1" and with a blue light on USB 2.0. Setting the DIP switch to ON apparently is for high speed mode (12Mbps, red light) and "1" is for low speed (1.5Mbps, blue light). My device was shipped with a red DIP switch, not blue as in the picture. However, the function appears to be the same.
The device has exposed components on the board. The sip/dip module (the large, tall, black component) seems particularly vulnerable. When I opened the package, it was bent about 15 degrees to the side. I pushed it back in place and it still works but it's not an ideal situation. I plan on printing a case for it as soon as I can.
With all that said, it accomplishes the same task as more expensive devices and is economical enough purchase multiple units if necessary.
Images in this review
Reviewed in the United States on May 21, 2020
Reviewed in the United States on January 19, 2023
Reviewed in the United States on December 20, 2021
