




iFi SilentPower OMNI USB
Description
The SilentPower OMNI USB is a flagship USB conditioner designed to isolate high-end DACs and digital audio systems from electrical noise and interference. Its triple-layer approach combines optical isolation, Active Noise Cancellation, and an internal 8,000mAh battery to provide a clean, electrically isolated path for USB audio.
The included USB OptiLink converts incoming USB data to optical before transmitting it to the OMNI USB, electrically isolating the source from downstream audio equipment. Five ANC-enabled PurePort outputs provide conditioned USB connectivity, including dedicated power outputs for compatible bus-powered devices.
An internal GMT clock system, real-time TFT monitoring, USB data rates up to 10Gbps, and 24-bit/192kHz digital-to-digital conversion further expand its capabilities. The OMNI USB also provides coaxial and optical S/PDIF outputs, external clock synchronization, and PD3.0 fast charging for compatible source devices.

Optical Isolation
The included USB OptiLink converts the incoming USB data signal to optical for transmission to the OMNI USB, where it is converted back to electrical data. This creates electrical separation between the source and downstream audio equipment, helping prevent noise, interference, and stray currents from traveling through the USB connection.
ANC-Enabled PurePort Outputs
Five PurePort outputs use Active Noise Cancellation to further reduce electrical noise after optical isolation. Two USB-A ports provide power and data, two USB-A ports provide dedicated power, and a USB-C PurePort provides additional conditioned connectivity.
8,000mAh Battery Power
An internal 8,000mAh lithium-ion battery allows the OMNI USB to operate independently from AC power during listening. Intelligent battery management maintains the battery between approximately 20% and 80% during managed charging to help extend battery life.
GMT Clocking & Real-Time Monitoring
The OMNI USB incorporates SilentPower's internal GMT clock system with external BNC clock synchronization capability. Its color TFT display provides real-time monitoring of power-supply noise, voltage, current, and power consumption across available USB ports.
Connectivity & Compatibility
Optical Inputs
- 10G SFP
- 1.25G SFP
PurePort USB Outputs
- 2 × USB-A — Power & Data
- 2 × USB-A — Power
- 1 × USB-C — Power & Data
Digital Outputs
- 1 × Coaxial S/PDIF — Standard Voltage
- 1 × Coaxial S/PDIF — High Voltage
- 1 × Optical S/PDIF
Clock
- 1 × BNC Clock Sync
USB Support
- USB 3.2
- USB 2.0
- Up to 10Gbps data rate
Battery
- 8,000mAh lithium-ion
Compatible Equipment
- USB DACs
- Network music streamers
- Music servers
- Windows PCs and Macs
- Compatible USB audio sources
- DACs with coaxial or optical S/PDIF inputs
Frequently Asked Questions
What does the SilentPower OMNI USB do?
How does the OMNI USB provide optical isolation?
Can the OMNI USB operate from its internal battery?
Can the OMNI USB connect to a DAC without USB?
Does the OMNI USB support an external master clock?
Specifications
| SPECIFICATIONS: OMNI USB | |
| Input Voltage | 9V/6A – 15V/4.8A |
| Inputs | 10G SFP; 1.25G SFP; 1x BNC Clock Sync |
| Pure USB Ports | 2x USB-A (Power & Data); 2x USB-A (Power); USB-C |
| Standard USB Ports | <0.05ms |
| 2x USB-C | <0.09% |
| Digital Outputs | 2x Coaxial (Standard/High Voltage); 1x Optical |
| USB Compliancy | USB 3.2; USB 2.0 |
| Data Speeds | 10Gbps/5Gbps/480Mbps/12Mbps/1.5Mbps |
| Battery | Lithium-Ion 8,000mAh |
| Dimensions | 214 x 158 x 41mm |
| Net Weight | 1.19kg |
| SPECIFICATIONS: USB OPTILINK | |
| Input Voltage | 5V |
| Inputs | Host USB-C; USB-C PD3.0 |
| PD3.0 Power Input | 100W (20V/5A) |
| Outputs | 10G SFP; 1.25G SFP |
| USB Compliancy | USB 3.2; USB 2.0 |
| Data Speeds | 10Gbps/5Gbps/480Mbps/12Mbps/1.5Mbps |
| Dimensions | 99 x 93 x 24mm |
| Net Weight | 268g (With SFP Optical Modules Installed) |
| WHAT'S INCLUDED | |
| In the Box |
OMNI USB USB OptiLink 15V Power Adapter Vertical Stand LC Fibre Cable (1m) USB-C to USB-C Cable (1.0m) USB-A to USB-C Cable (1.5m) 2 x SFP LC Fibre 10G Module 2 x SFP LC Fibre 1.25G Module |
| DOWNLOADS | |
| User Manual | Download PDF |
iFi Audio Reviews


