The present embodiments relate generally to cooling units for an ultrasoundimaging apparatus, and related ultrasoundsystems. The ultrasound imaging systems may include an ultrasound imagingapparatus operable to acquire ultrasound image data; anda cooling unit configured to detachably couple to the ultrasound imagingapparatus. The cooling unit may be cordless and include anactive cooling element for removing heat from the ultrasound imagingapparatus. The ultrasound imaging apparatus may have a sensorto determine when the cooling unit is attached. The cooling unit may have anidentity interface, and the ultrasound imaging apparatusmay use the identity interface to determine whether the cooling unit iscompatible.