Three Apple iMacs (Retina 4K, 21.5 inch) each with keyboard, mouse and power cable come from the holdings of the School of the City of Braunschweig.   The computers were procured in 2018 and left service in August 2026. keyboards and mice are unused. CE markings are available. Attention: For data protection reasons, the existing data on the computers was completely deleted, the memory was completely emptied and the computers were reset to factory settings.   Data Computer: Display: 21.5" Retina 4K display (54.61 cm diagonal) with resolution: 4096 x 2304 pixels Processor: 3.6 GHz quad-core Intel Core i7 (turbo boost up to 4.2 GHz) Memory: 32 GB, 2400 MHz DDR4 memory (on-board) Capacity: 1 TB Fusion Drive Graphics: Radeon Pro 560 with 4 GB VRAM Operating system: macOS High Sierra   Video and camera: FaceTime HD camera, Digital Thunderbolt 3 video output, Native DisplayPort output via USB‐C Output: Thunderbolt 2, HDMI, DVI and VGA with appropriate adapters (sold separately)   Audio: stereo speaker, microphone and 3.5 mm headphone connection   Dimensions and weight: Height: 45.0 cm x width: 52.8 cm x depth with base: 17.5 cm Weight: 5,66 kg   Mice data: Dimensions and weight: Height: 2.16 cm x width: 5.71 cm x depth: 11.35 cm Weight: 99 g Multi-touch Connectivity and extension: Bluetooth, Lightning connector, Wireless technologies   Data keyboards: Layout: German QWERTZ layout with digit block, document navigation and arrow keys in full size Touch ID: works exclusively on Mac models with Apple Chip Key mechanics: Scissor mechanism under each key Power supply: fixed, rechargeable battery. Apple indicates approximately one month of runtime per load. Connection: Lightning, for charging and for first pairing Dimensions: 0.41 to 1.09 cm Height x 41.87 cm Width x 11.49 cm Depth Model: A2520   Condition of components: Minimum wear marks in the form of the smallest scratches, small screen and foot scrapers (at the edge) on one of the computers (see Figures 3 and 4) Mice without connecting cable (lightning connection cable would have to be procured independently) VDE test plaques on the computers