JCAT USB kort FEMTO med extrafin Crystek oscillator ger dig det bästa ljudet från din streaming PC. Den har även ingång för extern 5V linjär PSU med DC kontakt. Senaste 2.0 Firmware som gav ljudlig uppgradering från JCAT.

Audiophile USB Audio output for USB DACs & USB-to-S/PDIF converters

Highest quality components and Femto Clock Technology cancel noise from a PC and guarantee superb sound quality. The USB Card FEMTO converts a PC into a hi-end USB Audio digital transport. Now even better performance with the new 2.0 firmware! 
FREE WORLDWIDE DELIVERY
Specification:

Audiophile PCI Express USB Audio Card
Plug & Play in any PC or mini PC with a PCIe slot
Amazing sound quality improvement for any USB DAC or USB-DDC
Ultra-low noise linear regulators and filters eliminate noise interferences from a PC
Zero switching power supplies design
Femto Clock Technology (Crystek CCHD-957) lowers jitter below measurable levels
Highest quality industrial grade components with operating temperature range from -40*C to +85*C
Enterprise level high-performance uDP720201 USB 3.0 NEC controller
Gold plated high durability EMI shielded USB connectors
Two audiophile grade USB Audio outputs supporting Low Speed (1.5 Mbps), Full-Speed (12 Mbps), Hi-Speed (480 Mbps) and Super-Speed (5 Gbps) data rates
Supports all lossless formats and sample rates
External PSU option eliminates computer as the source of power. For lowest noise and best sound quality use JCAT power supplies (requirements for the PSU: 5V/1A min)
Both full-size and low-profile laser cut PCI-e brackets included
All x1-x16 lane PCI Express 2.0 slots supported
Supported operating systems: Windows (all editions) and Linux


Nypris 500€ (ca 5800kr)

https://jcat.eu/product/usb-card-femto-audiophile-usb-audio-output/