Innovative design, impressive performance
HP Compaq Pro 4300 All-in-One Business PC
Innovative, reliable, manageable
Meet your demands head on with an all-around versatile design built for business PC performance.
HP recommends Windows.
Take back your desktop with the HP Compaq Pro 4300 All-in-One (AiO) Business PC—our most space-efficient commercial all-in-one with the latest PC technologies to keep your team going. Experience the power of 2nd and 3rd generation Intel® Core™ processors1 and integrated Intel® HD Graphics that bring presentations and design projects to life.
Reduce deployment hassles with a fast set-up and take the space-saving approach to the traditional PC. Users can spread out across a 20-inch diagonal, widescreen LED display with tilt functions for the look that’s just right. The slim, modern profile comes complete with side and rear USB ports, audio ports and built-in storage for your HP 6-in-1 Media Card Reader.
Rich multimedia
Get exceptional audio quality with built-in, commercial-class speakers and say goodbye to separate hardware components and cluttered wires. The HP Compaq Pro 4300 AiO also includes audio line-in/line-out connectivity for stereo, stereo headphones and microphone.
Bridge the distance and seal the deal face-to-face with an optional, built-in 1.3 MP webcam2 and single non-array microphone. Connect and collaborate with colleagues around the globe through HP Virtual Room.2 Share screens, organize private online meetings and communicate effectively, regardless of where you or they do business.
Customize and expand
The HP Compaq Pro 4300 AiO integrates many of the computing elements you need and leaves plenty of room for customization and expansion. Increase system memory with up to two DDR3-1600 SODIMM slots that support up to 16 GB.3 Configure standard SATA hard drives up to 1 TB,4 and choose an optional optical drive for growing data storage or replication needs down the road.
Simplified management and protection
Save time with an out-of-the-box ready solution. Protect your business-sensitive data with preinstalled Microsoft® Defender and optional HP Client Security.6 SPECIFICATIONS
Operating system
Pre-installed :
Windows 10 Professional  
Processors 1
Intel 3rd Generation Core i3 Processors
Chipset
Intel H61 Express
Display
20" diagonal TN widescreen WLED backlit anti-glare LCD; optional integrated 1.3 MP webcam & single non-array microphone; maximum resolution of 1600 x 900
Memory4
4GB 1600 MHz DDR3 SDRAM; (2) SODIMM slots enabling up to 16GB, dual channel memory support
Internal storage5
500GB SATA self-encrypting drive
Removable storage8
HP 6-in-1 Media Card Reader, HP Slim Tray-load DVD-ROM drive, HP Slim Tray-load SuperMulti DVD Writer drive6
Expansion slots
Optional: One (1) MiniPCIe x1 (half-height)
Graphics
Integrated Intel® HD Graphics: Basic, 2000, 2500 or 4000 (depends on processor)
Audio
RealTek ALC269 codec, integrated business class 2.0 speakers (2W x 2) with Basic Business Audio, microphone and headphone ports, stereo line-out
Communications
Integrated RealTek RTL8111F GbE 10/100/1000; optional wireless cards available
Ports and connectors
Side: (2) USB 2.0 ports, microphone, headphone
Rear: (4) USB 2.0 ports, stereo audio out, RJ-45 Ethernet, serial RS-232, power connector
Input devices
USB standard keyboard, , USB CCID SmartCard keyboard, USB PS/2 Washable keyboard, Wireless keyboard and mouse, USB Optical mouse, USB Laser mouse, USB PS/2 Washable Scroll mouse
Power
External 150W Power Supply, Active PFC, 87% efficient power supply
Security
Security lock slot, HP Keyed Cable Lock, Nobel Locking Plate support, Wall Mountable via 3rd party adapter
Software
HP Compaq business PCs are shipped with a variety of software titles included to ensure a productive experience right out of the box including HP Client Security, HP MyDisplay, HP Linkup and PDF Complete, Corporate Edition. Buy Microsoft® Office to activate Office Software on this PC.
Dimensions
(W x D x H)

Without Stand: 20 x 2.7 x 14 in (50.7 x 6.8 X 35.6 cm ) With Stand: 20 x 8.66 x 16 in (50.7 x 22 x 40.6 cm)