Apple externes OWC 2TB Aura Stromkabelverlä Lüfter iMac 27 NVMe SSD Reinigung 4 TB SSD 2TB SSD original Apple 240 GB SSD original Apple Apple Duckhead NuPower 60 Wh original Apple 500GB SSD original Apple OWC 500 GB Aura Austausch OWC Express 1M2 Lautsprecher Apple original Apple 1TB SSD Upgrade neue original APPLE AirPods Reparatur Innenreinigung NVMe SSD neue original 128 GB SSD