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ASUS

ASUS RNUC14MNK3500000 barebone mini PC Intel Core 3 N355 DDR5 16GB max

SKU CH-B790-F07P3 MPN RNUC14MNK3500000

Compact barebone mini PC with an Intel Core 3 N355 processor, single DDR5-4800 slot supporting 16 GB, triple display outputs, 2.5 GbE LAN, Wi-Fi 6E and Bluetooth 5.3

  • CPU TypeIntel Core 3 N355, TDP 15W
  • Memory installedNo Memory
  • Memory slot1 x 262Pin SO-DIMM
  • Memory Type SupportedDDR5 4800
  • Max Memory Supported16GB
  • Dual Channel Memory SupportedNo
  • Intel Core 3 N355 processor handles everyday workloads at 15 W
  • Single DDR5-4800 SO-DIMM slot supports up to 16 GB memory
  • Triple display outputs via DisplayPort, HDMI and USB Type-C
  • 5 GbE LAN plus Wi-Fi 6E and Bluetooth 5.3 for fast connectivity
  • Compact 5.31 x 4.53 x 1.42 inch chassis includes VESA mount

Essential Barebone

The ASUS NUC 14 Essential RNUC14MNK3500000 is a compact barebone mini PC built around an Intel Core 3 N355 processor with a 15W TDP. It arrives without memory or storage, providing a single 262-pin SO-DIMM slot for DDR5-4800 modules up to 16GB and two M.2 slots for NVMe and SATA SSDs. Triple display outputs via DisplayPort, HDMI and USB Type-C suit multi-monitor desks, while 2.5GbE LAN, Wi-Fi 6E AX211 and Bluetooth 5.3 handle connectivity in a 5.31 x 4.53 x 1.42 inch chassis with VESA mount included.

Target Builder

This kit suits integrators and home-office users who want a silent, low-power platform for web browsing, office apps or digital signage and are comfortable adding their own RAM and SSD. The single memory channel and 16GB ceiling rule out workloads that benefit from dual-channel bandwidth or larger memory footprints. Buyers needing discrete graphics, more than two internal drives or legacy COM ports should look at larger form factors.

Deciding Spec

The single SO-DIMM slot capped at 16GB of DDR5-4800 is the specification that determines suitability; it fixes both the maximum capacity and the memory bandwidth available to the Intel UHD Graphics engine.

Highlights

  • Intel Core 3 N355 processor handles everyday workloads at 15 W
  • Single DDR5-4800 SO-DIMM slot supports up to 16 GB memory
  • Triple display outputs via DisplayPort, HDMI and USB Type-C
  • 5 GbE LAN plus Wi-Fi 6E and Bluetooth 5.3 for fast connectivity
  • Compact 5.31 x 4.53 x 1.42 inch chassis includes VESA mount

Specifications

BrandASUS
SeriesASUS NUC 14 Essential
ModelRNUC14MNK3500000
CPU TypeIntel Core 3 N355, TDP 15W
Memory installedNo Memory
Memory slot1 x 262Pin SO-DIMM
Memory Type SupportedDDR5 4800
Max Memory Supported16GB
Dual Channel Memory SupportedNo
Storage InstalledNo Hard Drive
M.2 SlotSlot 1:128GB~2TB M.2 2280 NVMe PCIe 3.0 x 4 SSD
Slot 2:128GB~2TB M.2 2242 SATA SSD
Integrated GraphicsIntel Graphics
Onboard AudioIntegrated
Channel7.1 Channel
LAN1 x Realtek RTL8125BG-CG (2.5 GbE)
Max LAN Speed2.5Gbps
Wireless LANWi-Fi 6E AX211 (Gig+)
WiFi GenerationWi-Fi 6E
BluetoothBluetooth 5.3
Front USB1 x USB 3.2 Gen2 Type-C
2 x USB 3.2 Gen2 Type-A
Front Audio Ports1 x 3.5mm Headset Jack
HDMI1 x HDMI 2.1 (TMDS)
DisplayPort1 x DisplayPort 1.4
Rear USB1 x USB 3.2 Gen2 Type-C DP 1.4
2 x USB 3.2 Gen 2 Type-A
1 x USB 2.0 Type-A
RJ451 x RJ45 LAN
Input19VDC, 3.42A
Power Supply65W
Dimensions135mm x 115mm x 36mm
Weight470g
PackagingVESA Screws / AC Power Adapter / Power Cord

Questions about this item

How do I install the DDR5 memory and M.2 storage in this barebone, and what step do people often miss?

Remove the bottom cover, insert one 262-pin DDR5-4800 SO-DIMM up to 16 GB into the single slot, then fit an M.2 2280 NVMe or SATA drive (128 GB to 2 TB) into the primary slot or an M.2 2242 SATA drive into the secondary slot; the step often missed is securing each drive with its retention screw before reassembly.

What maintenance or replacement will the ASUS NUC 14 Essential need over time?

The SO-DIMM and M.2 drives are user-replaceable; you may later upgrade the single DDR5 module to the 16 GB maximum or swap the NVMe or SATA SSD for a larger one within the 128 GB to 2 TB range, and the VESA mount screws can be re-tightened if the unit shifts.

What limit appears first when the Intel Core 3 N355 runs sustained workloads?

The 15 W TDP ceiling is reached first; the integrated Intel Graphics share the single DDR5-4800 channel, so prolonged heavy compute or triple-display output will throttle once the processor hits its thermal envelope.

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