Audiophile PCIe network card with SFP output
Everest LAN One is a dedicated audiophile PCIe network card engineered for high-end music servers, streamers and Roon Ready DACs. Designed as a sister product to Everest USB One, it uses the same low-noise design philosophy — precision SC-cut clocking, ultra-low-noise LT3042 regulation, a carefully controlled PCB layout and dedicated power architecture — but replaces the USB output with a high-quality SFP Ethernet interface.
SFP output
An SFP Ethernet port — optical SFP modules over fibre, or an SFP-to-RJ45 adapter for standard copper Ethernet.
Galvanic isolation
With optical SFP modules and fibre, a complete galvanic break — blocking electrical noise, ground-related disturbances and common-mode interference.
Clocking
SC-cut low phase noise crystal oscillator, fed by stacked ultra-low-noise LT3042 regulators.
Built for audio
Optimized for low noise, low latency and signal integrity. Plug & play; full-height & low-profile brackets.
Free worldwide shipping
All prices include VAT.
Availability: Fall 2026
Designed for Network Audio
Network audio is often described as “just data”, but the network interface inside a music server remains an active part of the playback chain.
The Ethernet controller, reference clock, power supply, PCB layout and physical output stage can all influence the electrical noise environment around the server and the connected DAC or streamer.
Everest LAN One was developed to provide a cleaner, more stable and lower-noise network output than standard motherboard Ethernet ports.
SFP Output for Flexible Network Isolation
Everest LAN One is equipped with an SFP Ethernet port, allowing you to choose the most suitable connection for the system.
With optical SFP modules and fibre cable, the network link can provide complete galvanic isolation between devices, helping prevent electrical noise, ground-related disturbances and common-mode interference from travelling through a copper Ethernet connection.
For systems that require conventional wired Ethernet, the SFP port can also accept an SFP-to-RJ45 adapter, allowing Everest LAN One to be connected to a standard copper Ethernet network.
Precision SC-Cut Reference Clocking
Everest LAN One uses an SC-cut low phase noise crystal oscillator, powered by stacked, state-of-the-art ultra-low-noise LT3042 voltage regulators. This provides a stable reference clock for the Ethernet controller, helping reduce timing-related disturbances and high-frequency noise generated by the network interface.
The oscillator is enclosed in a dedicated CNC-machined metal housing and additionally potted with a damping compound to suppress high-frequency microphonic effects, further improving mechanical stability and the clock’s phase noise performance under real-world operating conditions.