Check the listing for details. RME Digiface USB 66 Channel USB 2.0 Audio Interface. Condition: New. Listed at 699.99 USD. RME Digiface USB 66 Channel USB 2.0 Audio Interface DescriptionRME Digiface USB 66 Channel USB 2.0 Audio InterfaceThis compact, portable and lightweight audio interface (only 220 g /0.49 lbs) transfers digital audio data in SPDIF and ADAT format to Windows and Mac computers.The latest Plug and Play technology guarantees a simple installation, even for the inexperienced user. Numerous unique features as well as RME's robust drivers enable a quick, efficient and comfortable operation of the Digiface USB. Key FeaturesThe Digiface USB is an extremely compact & portable digital audio interface with 4 optical ADAT / SPDIF I/Os, and an analog high-quality line/phones output via 6.3 mm TRS jack. Continuing the legacy of RME‘s famous HDSP Digiface, a triple ADAT I/O interface with phones and PCI interface,Digiface USB simplifies connection with USB 2, does not need an external power supply, and even adds another optical I/O, resulting in 32 channels input and output each when using ADAT optical.The analog output hosts channels 33/34, and can be used freely thanks to TotalMix FX, RME‘s routing and monitoring solution that knows nearly no limits in routing and mixing (the Digiface USB does not include FX).Each single optical port can use either ADAT (up to 8 channels) or SPDIF (stereo). While the inputs adapt automatically to the received signal format, the outputs can be individually switched between ADAT and SPDIF operation. Supported are SMUX and SMUX4. Therefore at 192 kHz either 8 channels via4 x SPDIF or ADAT are possible on both inputs and outputs.Its small size, weight and bus-powered operation make the Digiface USB extremely versatile and useful. It could even serve as simple headphone amp for mobile use. Technical SpecificationsInputs4 x ADAT/SPDIFOutputs4 x ADAT/SPDIF / 1 x Phones TRS Stereo 6.3 mmClock modesInternal, ADAT In, SPDIF InSample rates28 kHz up to 200 kHzJitter< 1 ns, internal and all inputsJitter sensitivityPLL operates even at 100 ns JitterTotalMix2244 channel mixer with 46-bit internal resolutionTotalMixlatency-free submixes and perfect ASIO Direct MonitoringInterfaceUSB 2.0, bus-poweredComes with DIGICheck, RME's ultimate measurement, analysis and test toolDriversWindows 7/8/10 (Multi-Client operation of ASIO and WDM)Mac OS X (10.6 or up, Core Audio) Contact us We can be contacted at any time through eBay messages if you have any questions, comments or product requests. We will respond to you within 24 hours and do our best to help you out! We encourage our customers to contact us with any questions or concerns! We'd like to be sure you are completely satisfied with your purchase. NEW ITEMS return policy 1. If you are not satisfied with your product, you may return it within 30-day window upon receiving the product. 2. Returns on new items are subject to restocking fees anywhere from 10-50% at the discretion of the seller. All returns will be inspected for any missing or damaged packaging or accessories or any other devaluation of the product. 3. Return shipping costs for new items are the responsibility of the buyer 4. Shipping charges incurred during fulfillment of the orders be deducted from the refund. 5. Items returned because a buyer found a "better price" will be subject to a partial refund. 6. All new item returns must receive an RMA number prior to the return. 7. Return items must be repackaged properly in the same care you received. USED/OPEN BOX Items return policy ALL sales are final / NO RETURN Any Items above $1000 return policy 1. These items purchased are not eligible for return unless if they are damaged/defective. CANCELLATIONS New and used items are subject to a 5% processing fee if cancelled before delivery.