Lüfter iMac 27 NVMe SSD 128 GB SSD original Apple Lautsprecher original Apple neue original OWC 500 GB Aura Apple Duckhead original Apple Apple original Apple Reparatur Stromkabelverlä OWC 1TB Aura 240 GB SSD original Apple 2TB Festplatte NVMe SSD Reinigung 2TB SSD Apple externes OWC Express 1M2 neue original 500GB SSD 4 TB SSD original Apple Austausch 1TB SSD Upgrade Innenreinigung