Apple iMac Retina 5K - 27" - i5 6 Core 3.3Ghz - 8GB - 512GB

Silver Grade Refurbished indicates that the product has undergone a thorough inspection, cleaning, and restoration process to ensure full functionality. While it is fully operational, it may show minor cosmetic signs of previous use, such as small scratches or scuffs on the casing, which do not affect performance.

This particular 27-inch iMac model typically allows for user-accessible RAM upgrades via a small access door on the back. Storage upgrades are generally more complex and often require professional service, as they involve opening the entire device. We recommend checking the specific model year's service manual for detailed upgrade instructions if you plan to do so.

This iMac runs Apple's macOS. Upon receiving the unit, you can confirm the exact installed version by going to the Apple menu > `About This Mac`. It's crucial to then check for available updates via the App Store or `System Settings` to ensure you have the latest compatible version for your hardware, enhancing security and feature access.

This refurbished iMac comes with a 12-month warranty. This warranty typically covers hardware defects and malfunctions that are not caused by accidental damage or misuse, providing confidence in your purchase.

For the screen, gently wipe it with a soft, lint-free cloth that is lightly dampened with plain water. Avoid using harsh chemicals, window cleaners, or abrasive materials. For the aluminum body, a dry or slightly damp soft cloth is sufficient. Always power off the iMac before cleaning.

Yes, this iMac supports connecting external monitors. The specific number and type of external displays supported will depend on the model year and the available ports, such as Thunderbolt or USB-C. Consult the 'About This Mac' section under `System Report` for precise display support information.

Yes, an Apple Keyboard and Mouse are included with this refurbished iMac, providing you with a complete setup ready for immediate use.

Verify all power cables are securely connected to the iMac and a working power outlet. Try a different power cord or outlet if available. If the issue persists, perform a System Management Controller (SMC) reset by unplugging the power cord for 15 seconds, then plugging it back in and waiting 5 seconds before powering on.

Go to `System Settings` > `Displays` and ensure 'Default for display' or the highest native 5K resolution (5120 x 2880) is selected. Restart the iMac if needed. If using an external monitor, check its cable connection and settings.

Check `Activity Monitor` (found in `Applications` > `Utilities`) to identify any resource-intensive applications. Ensure macOS is updated to the latest compatible version. Consider freeing up storage space if the internal drive is nearly full, as this can impact performance. Running a first aid on your disk utility is also a good step.

For wired peripherals, ensure they are securely plugged into the USB ports. For wireless (Bluetooth) devices, check their batteries, ensure they are paired correctly in `System Settings` > `Bluetooth`, and restart the iMac.