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Silver 17.3-inch laptop with a backlit keyboard and included wireless mouse

HP

HP OmniBook 3 laptop Intel Core Ultra 7 255U 16GB DDR5 4TB PCIe SSD 17.3" FHD Silver

SKU CH-86RC-XD863

17.3-inch IPS FHD laptop with Intel Core Ultra 7 255U, 16GB DDR5, 4TB PCIe SSD, WiFi 7 and Bluetooth 5.4

  • ColorSilver
  • Operating SystemWindows 11 Pro
  • CPU TypeIntel Core Ultra 7
  • Turbo Frequency5.2 GHz
  • CPU L3 Cache12MB Cache
  • Screen Size17.3"
  • 12-core Intel Core Ultra 7 processor reaches 5.2 GHz turbo for demanding workloads
  • 16 GB DDR5 memory delivers fast multitasking and responsive performance
  • 4 TB PCIe NVMe SSD provides vast storage capacity for large files
  • 3-inch IPS FHD display offers clear 1920 x 1080 visuals at 60 Hz
  • WiFi 7 and Bluetooth 5.4 ensure modern wireless connectivity

HP OmniBook 3 for mobile professionals

The HP OmniBook 3 is a 17.3-inch laptop built around an Intel Core Ultra 7 255U processor with 12 cores and 14 threads. It ships with 16GB of DDR5 memory and a 4TB PCIe NVMe SSD. The IPS display runs at 1920 x 1080 resolution and 60Hz. Windows 11 Pro is pre-installed.

Sustained workload behaviour

The 45W USB-C power adapter feeds a 3-cell 41Wh battery while the integrated Intel Graphics handles visual output. Under continuous load the 12MB L3 cache and 5.2GHz turbo frequency help maintain throughput. WiFi 7 and Bluetooth 5.4 provide modern wireless connectivity for long sessions.

Pre-purchase checklist

Verify that your peripherals work with HDMI and two USB 3.2 Type-C ports as no other video or data interfaces are present. The 10.2 x 15.75 x 1 inch chassis weighs 4.4lb and uses a fixed 16GB DDR5 configuration. Buyers who need user-replaceable memory or a larger battery should consider other form factors.

Highlights

  • 12-core Intel Core Ultra 7 processor reaches 5.2 GHz turbo for demanding workloads
  • 16 GB DDR5 memory delivers fast multitasking and responsive performance
  • 4 TB PCIe NVMe SSD provides vast storage capacity for large files
  • 3-inch IPS FHD display offers clear 1920 x 1080 visuals at 60 Hz
  • WiFi 7 and Bluetooth 5.4 ensure modern wireless connectivity

Specifications

BrandHP
SeriesOmniBook
ColorSilver
Operating SystemWindows 11 Pro
CPU TypeIntel Core Ultra 7
Turbo Frequency5.2 GHz
CPU L3 Cache12MB Cache
Screen Size17.3"
TouchscreenNo
Resolution1920 x 1080
GPU/VPUIntel Graphics
Graphic TypeIntegrated Card
SSD4 TB
HDDNo
Storage Spec4TB PCIe SSD
Memory16GB
Memory SpeedDDR5
Optical Drive TypeNo
WLAN802.11be
BluetoothBluetooth 5.4
HDMI1 x HDMI
Audio Ports1 x Headphone/Microphone Combo Jack
KeyboardStandard
Backlit KeyboardBacklit
WebcamYes
Card ReaderNo
StyleStandard
TypeCopilot +

Questions about this item

How loud and hot does the 15th Gen Ultra 7-255U get during all-day use?

The 45 W power supply and 41 Wh battery indicate typical ultrabook thermals; fan noise stays low for office work and rises only under sustained multi-core loads.

Which cables or peripherals must I already own to use the two USB 3.2 Type-C ports and HDMI output?

You need USB-C cables or adapters for the two Type-C ports and an HDMI cable for the video output.

Will the Intel Graphics integrated GPU drive my older 1080p monitor at 60 Hz over HDMI?

Yes, the HDMI port supports 1920 x 1080 at 60 Hz, matching the laptop's own 17.3" 60 Hz panel.

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