Princeton Instruments’ SOPHIA-XO:2048 is a high-speed, ultra-low-noise camera with a 2048 × 2048, 15 µm2 pixel CCD, which provides >3 fps with 16 MHz readout speed at full resolution. New proprietary ArcTec ultra-deep-cooling technology minimises dark noise by thermoelectrically cooling the CCD to less than –90°C using only air assist. A back-illuminated CCD without an anti-reflective coating is used to allow direct detection of the widest range of X-rays (~10 eV to 30 keV). A 6” rotatable ConFlat flange with a high-vacuum seal design provides interfacing to UHV instrumentation.