Full-size backlit keyboard with 78 (U.S.) or 79 (ISO) keys, including 12 function keys and 4 arrow keys (inverted “T” arrangement).HDMI audio and video output using a third-party Mini DisplayPort to HDMI Adapter.Dual-link DVI output using Mini DisplayPort to Dual-Link DVI Adapter supports 30-inch Apple Cinema HD Display (optional).VGA output using Mini DisplayPort to VGA Adapter (optional).DVI output using Mini DisplayPort to DVI Adapter (optional).Dual display and video mirroring: Simultaneously supports full native resolution on the built-in display and up to 2560 by 1600 pixels on an external display, both at millions of colors.Intel HD Graphics 3000 with 384MB of DDR3 SDRAM shared with main memory 5.13.3-inch (diagonal) LED-backlit glossy widescreen display with support for millions of colors.L pAm is the mean A-weighted sound pressure level measured at the operator position (rounded to the nearest dB).L WAd is the statistical upper-limit A-weighted sound power level (rounded to the nearest 0.1 B).Meets ENERGY STAR Version 5.2 requirementsĭECLARED NOISE EMISSIONS in accordance with ISO 9296.Highly recyclable aluminum and glass enclosure.MacBook Pro is designed with the following features to reduce its environmental impact: Support for Apple iPhone headset with microphone.Combined headphone/line in (supports digital output).
Bluetooth 2.1 + EDR (Enhanced Data Rate) wireless technology.Wi-Fi wireless networking 2 (based on IEEE 802.11n specification) IEEE 802.11a/b/g compatible.When installing, ensure your system is plugged in to power, or the update will not be installed. If you have NOT previously installed High Sierra, you can download and install this package (if running OS X 10.10 Yosemite or later) to install the latest BootROM version (you MUST reboot after installing the package to apply the firmware update). APFS Boot ROM Support: If you have a machine that supports High Sierra natively, you MUST ensure you have the latest version of the system's BootROM installed.I have early 2011 mac book pro that I recently upgraded its ram to 16 GB, i wanted to update its operation system to latest possible i checked out you tube an then downloaded "macOS Catalina Patcher" from " "in important info section there was a disclaimer who said this:
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