The HP ProBook 640 G1 is an earlier model in HP's ProBook series of laptops. Here are the general specifications for the HP ProBook 640 G1:

Processor Options:

• 4th generation Intel Core processors (e.g., Core i3, Core i5, Core i7)

Memory:

• Up to 16 GB DDR3 RAM

Storage Options:

• Hard Drive: Up to 1TB SATA HDD
• Solid State Drive (SSD): Options may be available, but likely limited in capacity compared to modern SSDs

Display:

• 14-inch diagonal display
• Various resolution options, including HD (1366 x 768) and Full HD (1920 x 1080)

Graphics:

• Integrated Intel HD Graphics

Ports and Connectivity:

• USB 3.0 Type-A
• USB 2.0 Type-A
• VGA
• Ethernet port
• Audio jack
• SD Card reader

Wireless:

• Wi-Fi 802.11n or 802.11ac
• Bluetooth connectivity

Operating System:

• Typically came with Windows 7 or Windows 8/8.1 Pro (Upgradable to Windows 10 Pro)

Security:

• TPM (Trusted Platform Module)

Battery:

• Battery life may vary based on configuration and usage, but typically several hours of usage.

Dimensions and Weight:

• Dimensions: Varies based on configuration
• Weight: Varies based on configuration

Additional Features:

• HD Webcam
• Spill-resistant keyboard
• Integrated stereo speakers