It's old as heck but still kicking! Mid 2009 MacBook Pro (MacBook Pro 5,5) I'm hoping to use opencore legacy patcher to install Monterey on it. : r/ macbookpro
MacBook Pro - Wikipedia
MacBook Pro Mid 2009 | 13 inches | Intel Core 2 Duo 2.53 GHz Processor – Jolt.com.pk
Apple MacBook Pro Mid-2009 15" Laptop | 2.53GHz | 4GB | 250GB | MacOSX – Dynamic Computer Surplus
OK COMPUTER SOLUTION JB: MacBook Pro (15-inch, Mid 2009) and (15-inch, 2.53 GHz, Mid 2009) - Technical Specifications