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