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HP

HP 400 G4 barebone mini PC i5-8500T 8GB 256GB NVMe Windows 10 Pro

SKU CH-149F-YCKG6 MPN 400

Compact mini PC with a six-core Intel i5-8500T, 8 GB DDR4, 256 GB NVMe SSD and Windows 10 Pro

  • TypeStudent / Home Office
  • Form FactorSO-DIMM
  • UsageBusiness
  • ColorBlack/Silver
  • ProcessorIntel 6-Core i5-8500T 2.1GHz Upto 3.5GHz
  • Processor Main Features64 bit 6-Core Processor
  • Six-core Intel i5-8500T up to 3.5 GHz for responsive multitasking
  • 256 GB NVMe SSD boots Windows 10 Pro in seconds
  • 8 GB DDR4 SO-DIMM memory expandable to 32 GB
  • Dual DisplayPort outputs drive two business monitors
  • Gigabit Ethernet plus Wi-Fi 5 and Bluetooth for flexible connectivity

Compact business mini PC

The HP ProDesk 400 G4 mini PC delivers a six-core Intel Core i5-8500T processor with a 2.1GHz base and 3.5GHz turbo frequency. Eight gigabytes of DDR4 SO-DIMM memory and a 256GB NVMe SSD provide responsive performance for office applications. Windows 10 Pro is pre-installed, and the 65W power supply keeps energy use low. Integrated Intel UHD Graphics 630 drives two DisplayPort outputs for dual-monitor setups.

Upgrade from older small-form-factor desktops

Replacing a legacy tower or an earlier mini PC with this unit adds six processing cores and NVMe storage speed in a fraction of the space. The jump is worth it when daily workloads involve multitasking across browser tabs, document suites and video calls. Builders who need more than 32GB of memory or a discrete graphics card should look elsewhere, as the platform maxes out at 32GB DDR4 and relies on integrated graphics only.

Fits tight workspaces and VESA mounts

The mini chassis slides behind a monitor or into a desk cubby, requiring only the included 65W adapter and a DisplayPort cable per screen. Gigabit Ethernet, Wi-Fi 5 and Bluetooth handle wired and wireless connectivity without extra cards. Two SO-DIMM slots allow memory expansion up to the 32GB limit, while the M.2 NVMe slot supports a larger drive if 256GB proves tight. No additional power cables or bulky coolers are needed.

Highlights

  • Six-core Intel i5-8500T up to 3.5 GHz for responsive multitasking
  • 256 GB NVMe SSD boots Windows 10 Pro in seconds
  • 8 GB DDR4 SO-DIMM memory expandable to 32 GB
  • Dual DisplayPort outputs drive two business monitors
  • Gigabit Ethernet plus Wi-Fi 5 and Bluetooth for flexible connectivity

Specifications

BrandHP
SeriesProDesk
Model400 G4
TypeStudent / Home Office
Form FactorSO-DIMM
UsageBusiness
ColorBlack/Silver
ProcessorIntel 6-Core i5-8500T 2.1GHz Upto 3.5GHz
Processor Main Features64 bit 6-Core Processor
Memory8 GB DDR4
Storage256 GB
AudioHD Audio
EthernetGigabit Ethernet
Wireless CardWi-Fi 5 (802.11ac)
Power Supply65W
MonitorMonitor not included
Operating SystemWindows 10 Pro
CPU TypeIntel Core i5 8th Gen
CPU NameIntel Core i5-8500T
L3 Cache Per CPU9MB SmartCache
CPU Main Features64 bit 6-Core Processor
GPU/VGA TypeIntel UHD Graphics 630
Memory Capacity8GB DDR4
Memory SpeedDDR4 2400
Memory Spec8 GB x 1
Memory Slot (Total)2
Memory Slot (Available)1
Maximum Memory Supported32 GB
SSD256GB
HDDNo
Storage Spec256GB NVMe SSD
Screen SizeNo Screen
LAN Speed10/100/1000Mbps
WLANWi-Fi 5 (802.11ac)
BluetoothBluetooth 4.2
Front USB2x USB 3.1 Gen 1
Video Ports2x DisplayPort
Rear USB1x USB 3.1 Gen 1, 3x USB 2.0
RJ451 port
Keyboard TypeWired Keyboard
Mouse TypeWired Mouse
Dimensions (H x W x D)6.89" x 6.97" x 1.34"
Weight2.75 lbs
Package TypeRetail

Questions about this item

What size RAM modules does the HP 400 G4 Mini accept?

It takes DDR4 SO-DIMM modules running at 2400 MHz, up to a total of 32 GB.

How do I add or replace the NVMe SSD in this Mini?

Remove the bottom cover, insert the M.2 2280 NVMe drive into the PCIe slot at a slight angle, then press down and secure it with the retention screw.

Which parts are most likely to need replacement after several years of daily use?

The 65 W external power adapter and the internal CMOS battery are the components that typically wear out first.

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