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At the IceCube Neutrino Observatory, a Surface Array Enhancement is planned,consisting of 32 hybrid stations, placed within the current IceTop footprint.This surface enhancement will considerably increase the detection sensitivityto cosmic rays in the 100 TeV to 1 EeV primary energy range, measure theeffects of snow accumulation on the existing IceTop tanks and serve as R&D forthe possible future large-scale surface array of IceCube-Gen2. Each station hasone central hybrid DAQ, which reads out 8 scintillation detectors and 3 radioantennas. The radio antenna SKALA-2 is used in this array due to its low-noise,high amplification and sensitivity in the 70-350 MHz frequency band. Everyscintillation detector has an active area of 1.5 m$^2$ organic plasticscintillators connected by wavelength-shifting fibers, which are connected to asilicon photomultiplier. The signals from the scintillation detectors areintegrated and digitized by a local custom electronics board and transferred tothe central DAQ. When triggered by the scintillation detectors, the filteredand amplified analog waveforms from the radio antennas are read out anddigitized by the central DAQ. A full prototype station has been developed andbuilt and was installed at the South Pole in January 2020. It is planned toinstall the full array by 2026. In this contribution the hardware design of thearray as well as the installation plans will be presented.

Development of a scintillation and radio hybrid detector array at the South Pole