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Black 18 inch gaming laptop with QHD plus display and RGB keyboard

MSI

MSI Crosshair 18 HX AI Ultra 9 275HX RTX 5070 32GB 1TB gaming laptop

SKU CH-A1J9-B7QBG

An 18-inch QHD+ 240Hz gaming laptop driven by a 24-core Intel Ultra 9 275HX up to 5.4 GHz and an RTX 5070 with 8 GB GDDR7, plus 32 GB DDR5 and a 1 TB PCIe SSD

  • ColorBlack
  • CPU TypeIntel Core Ultra 9 (Series 1)
  • Processor Name2.70GHz
  • Number of Cores24-core (8P+16E) Processor
  • Turbo Frequency5.4 GHz
  • Screen Size18.0"
  • 24-core Intel Ultra 9 275HX reaches 5.4 GHz turbo for responsive multitasking
  • 18-inch QHD+ 240 Hz panel delivers 2560 x 1600 detail at high refresh
  • NVIDIA GeForce RTX 5070 with 8 GB GDDR7 drives modern gaming performance
  • 32 GB DDR5 plus 1 TB PCIe SSD provides ample memory and fast storage
  • Two Thunderbolt 5 ports and HDMI 2.1 enable versatile high-speed connectivity

18-inch QHD+ 240Hz gaming laptop

The MSI Crosshair 18 pairs an 18.0-inch QHD+ panel at 2560 x 1600 with a 240Hz refresh rate. An Intel Core Ultra 9 275HX processor delivers 24 cores and a 5.4 GHz turbo frequency. The NVIDIA GeForce RTX 5070 laptop GPU provides 8GB of GDDR7 video memory. The system includes 32GB of DDR5 memory and a 1TB PCIe SSD. Windows 11 Pro comes pre-installed.

Sustained load behaviour

The 24-core processor combines 8 performance cores with 16 efficient cores to maintain throughput during extended sessions. Thunderbolt 5 ports support high-bandwidth peripherals without throttling the internal PCIe bus. The 18-inch chassis provides thermal mass for the CPU and GPU under continuous load. Wi-Fi 6E and Bluetooth handle wireless connectivity while the RJ-45 jack offers a wired alternative.

Upgrade context

This configuration replaces earlier 16-core mobile workstations that lacked Thunderbolt 5 and GDDR7 graphics memory. The jump is worthwhile when workloads need 24 threads, 240Hz panel response, and the 36MB cache of the Ultra 9 275HX. Buyers moving from 15-inch QHD machines gain the larger 18.0-inch display area and the 1TB PCIe SSD capacity in a single step.

Highlights

  • 24-core Intel Ultra 9 275HX reaches 5.4 GHz turbo for responsive multitasking
  • 18-inch QHD+ 240 Hz panel delivers 2560 x 1600 detail at high refresh
  • NVIDIA GeForce RTX 5070 with 8 GB GDDR7 drives modern gaming performance
  • 32 GB DDR5 plus 1 TB PCIe SSD provides ample memory and fast storage
  • Two Thunderbolt 5 ports and HDMI 2.1 enable versatile high-speed connectivity

Specifications

SeriesRaider
ModelCrosshair 18
ColorBlack
CPU TypeIntel Core Ultra 9 (Series 1)
Processor Name2.70GHz
Number of Cores24-core (8P+16E) Processor
Turbo Frequency5.4 GHz
Screen Size18.0"
TouchscreenNon-Touch Screen
Display TypeQHD+
Resolution2560 x 1600
Operating SystemWindows 11 Pro
GPU/VPUGeForce RTX 5070 Laptop GPU
Video Memory8GB
SSD1TB PCIe SSD
HDDNo
Memory32GB
Optical Drive TypeNo
WLANYes
BluetoothYes
USB2
HDMI1 x HDMI
Audio Ports1 x Headphone/Microphone Combo Jack
AudioIntegrated Sound card
SpeakerInternal Speakers
TouchpadYes
KeyboardYes
Backlit KeyboardBacklit
WebcamYes
StyleStandard
TypeGaming
UsageConsumer
Package ContentLaptop, Charger
Weight6 - 6.9 lbs.

Questions about this item

How loud and hot does the 24-core Ultra 9 275HX get during all-day loads?

The 24-core Ultra 9 275HX runs up to 5.4 GHz inside an 18-inch chassis weighing 6.83 pounds with 1.17-inch thickness, giving the cooling system substantial room to manage sustained heat and fan noise.

Which cables or peripherals must I already own to use the Thunderbolt 5 and HDMI 2.1 ports?

You need Thunderbolt 5-certified cables for the two Thunderbolt 5 ports and an HDMI 2.1 cable for the HDMI 2.1 output; the three USB 3.2 Gen 2 Type-A ports accept standard USB-A plugs.

Will my older USB 3.2 Gen 1 drives and displays work with the three USB 3.2 Gen 2 Type-A ports and HDMI 2.1?

Yes — the three USB 3.2 Gen 2 Type-A ports are backward compatible with USB 3.2 Gen 1 devices, and the HDMI 2.1 port works with older HDMI displays at their native capabilities.

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