The HP EliteBook 840 G3 is a premium business laptop known for its sleek design, durable build quality, and reliable performance. Here are the key features and specifications for the HP EliteBook 840 G3 model with an Intel Core i5-6300U processor:

Key Features:

1. Display: 14-inch diagonal display with a variety of screen resolutions available, providing a balance between portability and productivity.

2. Processor: Powered by the Intel Core i5-6300U processor, a 6th generation dual-core processor with a base clock speed of 2.4GHz. The i5-6300U is known for its efficient performance, suitable for multitasking and business applications.

3. Memory (RAM): Configurable with different RAM options, typically ranging from 4GB to 16GB DDR4 RAM, providing smooth performance and multitasking capabilities.

4. Storage: Various storage options, including traditional hard disk drives (HDD) and faster solid-state drives (SSD). SSDs are known for faster data access and improved system responsiveness.

5. Graphics: Integrated Intel HD Graphics 520, suitable for everyday tasks, business applications, and moderate graphics work.

6. Build Quality: The EliteBook 840 G3 features a premium and durable design with a slim profile. It often includes a metal chassis, spill-resistant keyboard, and a glass touchpad.

7. Security Features: Equipped with security features such as HP Sure Start with Dynamic Protection (BIOS protection), HP Client Security, and optional features like a fingerprint reader and TPM (Trusted Platform Module).

8. Connectivity: Comprehensive connectivity options, including USB ports, HDMI, Ethernet, audio jacks, and a docking station connector. Depending on the model, it may also feature USB Type-C and a Smart Card reader.

9. Wireless Connectivity: Supports Wi-Fi and Bluetooth connectivity for wireless networking and peripheral connectivity.

10. Operating System: Typically comes with Windows 10 Professional, providing a secure and familiar computing environment for business users.

11. Battery Life: The EliteBook 840 G3 is known for its decent battery life, allowing users to work on-the-go without frequent charging.

12. Webcam: Integrated HD webcam for video conferencing and online meetings.

The HP EliteBook 840 G3 is a reliable choice for professionals who prioritize performance, security, and a premium design in their business laptops. The specific features and configurations may vary based on the particular model and customization options chosen at the time of purchase.