The ISA 8-Channel ADC from Focusrite is an optional 192kHz analog-to-digital converter expansion card for the ISA 828 eight-channel preamp. It utilizes Burr-Brown amplifiers and PCM4220 A-D converter chips, allowing the card to deliver superior performance that includes a dynamic range of 122dB, and jitter of less than 250 picoseconds. The card can be field-installed at any time, and the 25-pin D-Type connector aids in integrating the ISA 828 seamlessly with any ProTools HD systems, as well as other popular hard disk recorders and mixing desks. Digital formats include an eight-channel single/dual wire AES/EBU and S/PDIF output, as well as an eight-channel ADAT Lightpipe (SMUX/SMUX2) output. Word clock I/O is provided via dedicated BNC connectors. **This B-Stock product has either been returned from a prior customer order or was used as a demo and repackaged. The product box may show signs of wear, and has had the manufacturer seal broken, but the product should remain in working condition. The item may show some signs of use, but it should not affect performance. All B-Stock items include the original manufacturer warranty, as we are an authorized reseller for this brand. This product is also covered under our return policy.