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Small black slim barebone mini PC, empty slots

ASUS

ASUS NUC 15 Pro RNUC15CRKI30000U Core 3 100U barebone mini PC

SKU CH-53SD-1GXMQ MPN RNUC15CRKI30000U

A barebone mini PC with an Intel Core 3 100U processor, two DDR5 SO-DIMM slots supporting up to 96 GB, dual M.2 NVMe bays, 2.5 GbE LAN, Wi-Fi 7, Bluetooth 5.4, Thunderbolt 4 and dual HDMI 2.1 outputs

  • ColorBlack
  • Form FactorSlim
  • CPU TypeIntel Core 3 100U
  • Memory installedNo Memory
  • Memory slot2 x 262Pin SO-DIMM
  • Memory Type SupportedSO-DIMM DDR5-5600 MHz / CSO-DIMM DDR5-6400 MHz

CPU Type Intel Core 3 100U

Group Slim Kit

  • Ready for up to 96 GB DDR5 memory with two SO-DIMM slots
  • Dual M.2 slots accept 2280 and 2242 PCIe 4.0 NVMe drives
  • 5 Gbps Ethernet plus Wi-Fi 7 and Bluetooth 5.4 for fast connectivity
  • Front USB 3.2 Gen 2x2 Type-C and dual Thunderbolt 4 ports deliver high-speed I/O
  • Compact 4.61 x 4.41 x 1.45 inch chassis includes VESA mount

Compact barebone for custom builds

The ASUS NUC 15 Pro RNUC15CRKI30000U is a slim barebone mini PC built around an Intel Core 3 100U processor running at 1.2 GHz. It ships without memory or storage so integrators can choose DDR5 SO-DIMM modules up to 96 GB and two NVMe SSDs. The 90 W power supply is included. This unit suits system builders who want a small footprint and full component control.

Connectivity limited by port selection

Front I/O provides one USB 3.2 Gen 2x2 Type-C and two USB 3.2 Gen 2 Type-A ports. Rear I/O adds two HDMI 2.1 outputs, two Thunderbolt 4 ports with DisplayPort 2.1, one USB 3.2 Gen 2 Type-A, one USB 2.0 Type-A and a single 2.5 Gbps Ethernet jack. Wireless uses Wi-Fi 7 and Bluetooth 5.4. Buyers who need more than one wired network link or additional legacy ports must add docks or adapters.

Memory ceiling decides fit

The board accepts two 262-pin SO-DIMM slots supporting DDR5-5600 or CSO-DIMM DDR5-6400 with a hard maximum of 96 GB. Storage uses one M.2 2280 slot and one M.2 2242 slot, both PCIe Gen4x4 and Gen 5 ready. If a workload requires more than 96 GB of RAM or more than two NVMe drives, this chassis cannot meet the requirement.

Highlights

  • Ready for up to 96 GB DDR5 memory with two SO-DIMM slots
  • Dual M.2 slots accept 2280 and 2242 PCIe 4.0 NVMe drives
  • 5 Gbps Ethernet plus Wi-Fi 7 and Bluetooth 5.4 for fast connectivity
  • Front USB 3.2 Gen 2x2 Type-C and dual Thunderbolt 4 ports deliver high-speed I/O
  • Compact 4.61 x 4.41 x 1.45 inch chassis includes VESA mount

Specifications

BrandASUS
SeriesNUC 15 Pro
ModelRNUC15CRKI30000U
Part Number90AR00R2-M00200
ColorBlack
Form FactorSlim
CPU TypeIntel Core 3 100U
Memory installedNo Memory
Memory slot2 x 262Pin SO-DIMM
Memory Type SupportedSO-DIMM DDR5-5600 MHz / CSO-DIMM DDR5-6400 MHz
Max Memory Supported96GB
Storage InstalledNo Hard Drive
M.2 Slot1 x M.2 2280 PCIe Gen4x4 NVMe SSD* (empty)
1 x M.2 2242 PCIe Gen4x4 NVMe SSD (empty)
*PCIe Gen 5 ready
Integrated GraphicsIntel Graphics
LANIntel i226V
Max LAN Speed2.5Gbps
Wireless LAN802.11be
WiFi GenerationWi-Fi 7
BluetoothBluetooth 5.4
Front USB1 x USB 3.2 Gen 2x2 Type-C
2 x USB 3.2 Gen 2 Type-A
HDMI2 x HDMI 2.1 (up to 4K@60Hz)
Thunderbolt2 x Thunderbolt 4 (with DisplayPort 2.1)
Rear USB1 x USB 3.2 Gen2 Type-A (5V/0.9A, 10Gbps)
1 x USB 2.0 Type-A (5V/0.5A, 480Mbps)
RJ451
Power Supply90W
Dimensions4.61" x 4.41" x 1.45"
Weight0.79 lb.
PackagingVESA Mount & Screws / AC Power Adapter/ Power Cord
Shipping weight1.18 kg
Package size183 × 152 × 127 mm

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Questions about this item

Which DDR5 speed should I choose between 5600 MHz SO-DIMM and 6400 MHz CSO-DIMM?

The board supports SO-DIMM DDR5-5600 MHz and CSO-DIMM DDR5-6400 MHz up to 96 GB total; pick 5600 MHz SO-DIMM for standard modules or 6400 MHz CSO-DIMM if you can source the smaller form factor.

What does the 1.2 GHz base clock on the Core 3 100U mean for everyday workloads?

The 1.2 GHz base frequency is the guaranteed minimum across all six cores; actual speeds rise with thermal headroom, so typical office and web tasks run smoothly while sustained loads will throttle to stay within the 90 W power budget.

How fast can the M.2 2280 slot actually run with a PCIe 4.0 NVMe drive?

The M.2 2280 slot is wired for PCIe Gen4x4, so a Gen 4 NVMe SSD will operate at its full rated speed; the socket is also labelled PCIe Gen 5 ready for future drives.

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