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Compact black ITX desktop cube, 8 litre volume

Intel

Intel NUC 11 Extreme NUC11BTMi9 Core i9-11900KB RTX 3060 16GB DDR4 512GB NVMe 650W 80Plus Windows 11 Home

SKU CH-4FHK-KC6XQ

A compact 8-litre gaming desktop with an 8-core i9-11900KB, RTX 3060 graphics, 16GB DDR4, 512GB NVMe storage and a 650W 80Plus power supply

  • TypeGaming & Entertainment
  • UsageConsumer
  • ColorBlack
  • ProcessorIntel® Core™ i9-11900KB Processor (24M Cache, up to 4.90 GHz
  • Processor Main Features8 Core
  • Cache Per Processor24 MB L3 Cache
  • 8-core i9-11900KB reaches 4.90 GHz turbo for high frame rates
  • RTX 3060 FE graphics card drives 1080p and 1440p gaming
  • 16 GB DDR4 3200 MHz memory handles multitasking and modern titles
  • 512 GB PCIe 4.0 NVMe SSD loads games and apps quickly
  • 650 W 80 Plus Gold PSU in 8 L ITX case fits tight spaces

Compact 8 litre gaming desktop

The Intel NUC 11 Extreme NUC11BTMi9 packs an 8 core Core i9-11900KB and an RTX 3060 FE card into an ITX chassis measuring 357 x 189 x 120mm. It ships with 16GB DDR4 3200MHz memory, a 512GB PCIe 4.0 NVMe SSD and Windows 11 Home. Builders who need more storage or a second graphics card will not find room inside this enclosure.

Thermals and 650W 80 Plus Gold supply

A 650W 80 Plus Gold unit powers the CPU, GPU and all onboard devices from a single internal brick. The compact layout uses the case volume to move air across the processor and the double wide graphics card without external radiators. Acoustic output stays low during typical gaming loads because the power supply fan and chassis fans share the same airflow path.

Connectivity and mounting implications

Rear I/O provides 6x USB 3.1 Gen 2 ports, 2x Thunderbolt 4, HDMI 2.0b and Ethernet driven by the integrated controller. Front panel adds 2x USB 3.1 Gen 2 while internal headers expose 2x USB 3.1 and 2x USB 2.0 for case accessories. Two M.2 PCIe Gen4 slots and two Gen3 slots plus two SATA ports allow storage expansion but the 12 inch card length limit restricts future GPU upgrades.

Highlights

  • 8-core i9-11900KB reaches 4.90 GHz turbo for high frame rates
  • RTX 3060 FE graphics card drives 1080p and 1440p gaming
  • 16 GB DDR4 3200 MHz memory handles multitasking and modern titles
  • 512 GB PCIe 4.0 NVMe SSD loads games and apps quickly
  • 650 W 80 Plus Gold PSU in 8 L ITX case fits tight spaces

Specifications

BrandIntel
SeriesNUC 11 Extreme
ModelNUC11BTMi9
TypeGaming & Entertainment
UsageConsumer
ColorBlack
ProcessorIntel® Core™ i9-11900KB Processor (24M Cache, up to 4.90 GHz)
Processor Main Features8 Core
Cache Per Processor24 MB L3 Cache
MemoryCrucial 16GB DDR4 3200MHz
StorageSolidigm PCIe 4.0 512GB SSD
GraphicsRTX 3060 FE Card
AudioSound card - Integrated
EthernetEthernet
Power Supply650W 80Plus
CaseITX
Operating SystemWindows 11 Home
Windows 11Ready
CPU TypeIntel Core i9 11th Gen
CPU NameIntel Core i9-11900KB
Turbo Frequency4.90 GHz
L3 Cache Per CPU24 MB
GPU/VGA TypeGeForce RTX 3060
Memory Capacity64GB DDR4
Memory SpeedDDR4 3200
Memory Slot (Total)2
Maximum Memory Supported64 GB
SSD1TB
HDDNo
Screen Size1.6"
Audio ChipsetIntegrated
Audio Channels7.1 channels
ModemIntel® Ethernet Controller i225-LM
LAN ChipsetIntegrated
LAN Speed10/100/1000/2500Mbps
WLANIntel® Wi-Fi 6E AX210 (Gig+)
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.2
Front USB2 x USB 3.1 Gen2( Max to 10Gbps)
Front Audio Ports3.5mm front stereo headset jack
Card Reader1 x SDXC Support UHS-II
Video Ports1 x HDMI 2.0b
Thunderbolt 32 x Thunderbolt 4
Rear USB4 x USB 3.1 Gen2 ( Max to 10Gbps)
RJ451 x Intel i225-LM RJ45 (10/100/1000/2500Mbps)
Rear Audio PortsAnalog audio
Dimensions (H x W x D)357 x 189 x 120mm(8L)
Weight9kg
Package TypeRetail

Questions about this item

How do I install the RTX 3060 FE Card into the NUC11BTMi9 and what step is often missed?

Insert the card into the double-wide PCIe X16 Gen4 slot from the CPU, secure the bracket screws, then connect the PSU power cables; the step often missed is plugging in the auxiliary 8-pin power connector from the 650W 80Plus unit.

What maintenance or replacement will the Crucial 16GB DDR4 3200MHz memory need later?

The SO-DIMM modules run at 1.2V standard or 1.35V with XMP; if capacity becomes limiting, replace with up to 64GB total using two DDR4 3200MHz SO-DIMMs — no other generation fits.

What limit appears first on the Core i9-11900KB during sustained loads?

The 8-core processor has a 3.30 GHz base frequency and 4.90 GHz max turbo; under continuous multi-threaded work the package power limit and thermal solution in the 8L ITX case will throttle clocks before the 650W PSU reaches its 80Plus Gold rating.

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