The interface features an onboard UAD-2 SOLO Core processor, giving you some dedicated DSP for operating the plug-ins. This unit is designed to be portable, with its all-metal construction and convenient desktop form factor. Included with the Apollo Solo USB is the Realtime Analog Classics bundle from UAD, whose specific plug-ins can be perused in the features section.

Please note, the Apollo Solo USB requires an external power supply and a USB 3.0 port on your Windows computer in order to operate. Refer to the manufacturer's website to verify your computer's compatibility.
The Universal Audio Apollo Solo USB is a compact desktop 2x4 interface designed for use in project/home studios and mobile recording setups. Connecting to your Windows computer over USB 3.0 Type-C, the unit provides two combination XLR-1/4” connections for mic/line sources, as well as a 1/4" input specifically tailored for electric guitars and basses. Two Unison preamps are on hand, each of which lets you color the incoming sound through Universal Audio’s preeminent modeling plug-ins. So, if you want the sound of a Neve or an API on your guitar or vocal, you can purchase one of the company’s appropriate plug-ins and use them as you record, committing their sound to the resulting audio capture.
The Apollo Solo USB sports two 1/4" output connections for your monitors, as well as a dedicated headphone output. Whether you monitor through your speakers or through headphones, you’ll experience near-zero latency performance, meaning you can play through UAD emulations without the processing interfering with your performance or timing.