The xMac Studio/Echo II DV is a 3U rackmount enclosure with dual-slot Thunderbolt to PCIe card expansion for the Apple Mac Studio computer. It's designed for optimal DV expansion, built to serve DV I/O cards that need significant bandwidth. The module supports Thunderbolt-compatible, single-width, non-GPU PCIe cards across its two slots. Cooling comes from dual temperature-controlled, variable-speed Noctua fans rated at 17 dBA, for quiet running in a studio or edit-suite setting.