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iFi SilentPower USB iPurifier Pro Galvanically Isolated USB Noise Purifier
For years, USB noise has been the not-so-silent enemy of modern audio. Computers leak interference into your DAC, masking the detail, depth, and realism your system was built to reveal.
Standing on the shoulders of three legendary iFi products — iGalvanic3.0, iSilencer, and iDefender — the USB iPurifier Pro brings their technologies together into one compact, revolutionary solution.
With active noise cancellation (ANC3), galvanic isolation, and ground loop removal, it doesn’t just reduce noise — it pushes it to the threshold of silence, letting your music breathe in pure clarity.
Three icons. One evolution. Ultimate silence.
Features
- Galvanic Isolation: Fully isolates the incoming USB data stream to prevent noise from your computer from reaching your DAC.
- Ground Loop Removal: Eliminates hum and interference caused by ground loops between components.
- ANC3 Technology: Actively cancels electromagnetic (EMI) and radio-frequency interference (RFI).
- Clean Power Delivery: Accepts an external power source to bypass noisy USB power lines.
- Versatile Connectivity: Choose between USB-C or USB-B 3.0 input options.
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Technical Specification
- Inputs: USB-C, USB-B 3.0
- External Power Input: USB-C 5V
- Grounding Port: Yes
- Outputs: USB-A 3.0 (Power and data); USB-A 3.0 (Power)
- Data Speed: 10 Gbps
- Dimensions: 42.8 x 23.2 x 96mm
- Weight: 108g
- Warranty: 1 Year
What Is In The Box
- iFi SilentPower USB iPurifier Pro Galvanically Isolated USB Noise Purifier
- (2x) USB cables
- User manual
- Warranty card
Videos
Manufacture Description
Noise, Cancelled.
USB power circuitry can all too often become a lightning-rod for high frequency EMI and RFI, raising the noise floor and disrupting the clarity of the audio signal across all frequencies.
Following the lead from our wildly popular iSilencer range, the USB iPurifier Pro incorporates our Active Noise Cancellation (ANC) technology into the USB power circuitry. Much like ANC headphones, the USB iPurifier Pro duplicates the unwanted noise and inverts the phase. The two signals cancel one another, leaving you with clean, noise-free USB power feeding into your audio system.
For the most dedicated purists, we also include an external USB-C power input, allowing users to connect a low-noise 5V external power supply. When the dedicated port is in use, the circuitry receiving USB power from the source device is disabled, and only data is received, while power to both USB output ports is handled by the external power supply.
Ground Control.
Modern audio setups include a wide range of devices, often powered and grounded separately. This makes it easy to introduce ground loops, and hard to identify and remove them.
Drawing from our experience with the award-winning iDefender range, the USB iPurifier Pro utilises the latest iteration of our proprietary IsoGround technology to eliminate excess earth connections.
For those who need to add a ground to their setup instead, the USB iPurifier Pro also includes a 4mm grounding port, compatible with our Groundhog+ - no matter the issue, the USB iPurifier Pro has everything you need to bury ground noise for good.
Speed without Compromise
While our focus has been to provide a wide range of noise-reducing features, we were also determined to ensure the USB iPurifier Pro never compromises on speed.
The USB iPurifier Pro boasts 10 Gigabit per second data transfer speeds, ensuring that transfer and playback of even the highest resolution audio files is never impaired, and maximising compatibility with anything you wish to connect.
What makes the iFi SilentPower USB iPurifier Pro stand out for USB audio?
This device cleans digital signals by removing electrical noise and interference before they reach your DAC or amplifier. Its full galvanic isolation ensures a purer, more detailed sound free from hum or distortion.
Does it really improve the listening experience?
Yes, users notice a quieter background and clearer sound details, especially when paired with high-end DACs or headphones. It enhances clarity and listening comfort without altering your setup.
Is it easy to set up?
Absolutely. The iPurifier Pro works instantly once plugged into your USB port—no software or configuration needed. It’s built with a solid design for long-term reliability.
Is it compatible with all devices?
It works with most USB audio setups, including computers and DACs, making it an ideal upgrade for anyone seeking cleaner digital sound.