HP ProDesk 400 G3 Small Form Factor PC

System features
Operating system	Windows 7 Professional 64 (available through downgrade rights from Windows 10 Pro 64) (This system is preinstalled with Windows 7 Professional software and also comes with a license and media for Windows 10 Pro software. You may only use one version of the Windows software at a time. Switching between versions will require you to uninstall one version and install the other version. You must back up all data (files, photos, etc.) before uninstalling and installing operating systems to avoid loss of your data.)
Processor family	6th Generation Intel® Core™ i3 processor
Processor	Intel® Core™ i3-6100 with Intel HD Graphics 530 (3.7 GHz, 3 MB cache, 2 cores)
Chipset	Intel® H110
Form factor	Microtower
Management features	Update BIOS via Cloud or Network (BIOS feature)
Environmental	Low halogen
Dimensions and weight
Dimensions (W x D x H)	16.5 x 35.88 x 35.5 cm
Weight	Starting at 7.05 kg (Exact weight depends on configuration)
Memory
Memory, standard	4 GB DDR4-2133 SDRAM (1 x 4 GB) (Transfer rates up to 2133 MT/s)
Memory Slots	2 DIMM
Storage
Internal drive bays	One 3.5"; One 2.5"/3.5"
External drive bays	1 slim ODD
Internal drive	1 TB 7200 rpm SATA
Optical drive	Slim SATA DVD-Writer
Display and graphics
Graphics	Integrated: Intel® HD graphics 530 9
Expansion features
Ports	Front: 1 headphone 1 microphone 2 USB 3.0 Back: 1 audio line in 1 audio line out 1 DisplayPort 1 RJ-45 1 serial 1 VGA 2 PS/2 (keyboard and mouse) 2 USB 3.0 4 USB 2.0
Expansion slots	1 full-height PCIe 3 x16 3 full-height PCIe 2 x1
Media devices
Audio	DTS Sound+™ audio management technology, HD audio with Realtek ALC221VB codec (all ports are stereo), microphone and headphone front ports (3.5 mm), line out rear port (3.5 mm), multi-streaming capable, internal speaker
Communications
Network interface	LANIntegrated Realtek GbE
Power and operating requirements
Power supply	300 W, up to 85% efficient, active PFC