ASUS XONAR U7 + Orion Headset

The wonder of incredible compact audio!
Xonar U7 serves the needs of PC gamers who want to enjoy strong and clear sound via headphones, and is also ideal for listening to music as it produces much more impactful and detailed audio than onboard hardware. Connecting via USB, it requires no standalone power supply and works instantly setup-free with no need to open the PC case.
Powerful sound from a compact and portable device
Xonar U7 engineering overcomes the space and power supply limitations of other external USB-based audio devices to offer precise and immersive 7.1-channel surround. Sound processing uses 192kHz/24-bit fidelity for true high definition output, maintaining consistent quality across all surround channels.
114dB signal-to-noise ratio (SNR)
Up to 16X audio clarity compared with the SNR ratios of average onboard audio.
Hyper Grounding technology
Exclusive ASUS Hyper Grounding PCB fabrication ensures strong signal insulation to reduce distortion and interference, also known as component crosstalk.
Digital to analog converter (DAC)
High quality Cirrus Logic® CS4398 DAC (digital-to-analog converter) brings clarity with excellent signal-to-noise ratio (SNR) and low total harmonic distortion (THD)
Integrated headphone amplifier pumps up every sound detail
Since many gamers choose to refrain from disturbing others while insisting on the best sound quality, Xonar teams integrate a headphone amplifier on Xonar U7 to boost immersive headphone output.
Win with Style. Perform in Comfort. The Orion full-size gaming headset is designed to provide gaming enthusiasts with the finest audio immersion and positioning needed in any game and at any location. After extensive research and development and taking customer feedback into account, the ROG team concluded that user comfort is key when it comes to gaming headsets. As such, ROG Orion possesses 100mm over-ear cushions for greater comfort, and bring immersive audio with large 50mm neodymium drivers. 
True to life in-game audio. 
Large 50mm neodymium drivers on Orion have been meticulously fine-tuned to provide dynamic audio positioning. They provide supreme clarity, thundering bass, and extreme low distortion. Powerful and dynamic audio makes the virtual battlefield so real, every action and reflex become lightning-fast second nature.
Retractable noise-filtering microphone.
Taking community feedback into account, ROG Orion use a retractable and flexible microphone boom for easier angle adjustment and neat storage when not in use. New microphone noise filtering technology boasts more sensitive voice capture capabilities for clearer in-game communications
Fine-tuned clamping force.
Through extensive research and testing several prototypes, we manage to design the Orion with not only light weight and ergonomic design, but also optimized clamping force for maximum comfort. 
100mm full size over-ear cushions.
ROG designers chose large 100mm over-ear cushions covered in highly-breathable quality leather treatment.
In-line volume control.
Easily adjust or mute the volume with a compact, clip-on volume control.
2.5m braided cable with gold-plated jacks.
The ROG Orion carries a tough braided cable and gold-plated jacks for longer durability and lower distortion. The extended 2.5m long cable also grants gamers extended freedom of movement.