HP
HP Thin Client MT21 laptop 14" Intel Celeron 3865U 1.80GHz 16GB DDR4 256GB NVMe Windows 10 Pro
A 14-inch thin-client notebook with an Intel Celeron 3865U processor, 16GB DDR4 memory and a 256GB NVMe SSD, running Windows 10 Pro
- ColorSilver
- Operating SystemWindows 10 Pro
- CPU TypeIntel Celeron
- Number of CoresDual-core Processor
- Screen Size14.0"
- TouchscreenNon-Touch Screen
- 14" HD display for clear viewing in tight spaces
- Intel Celeron 3865U 1.80GHz dual-core handles routine workloads
- 16GB DDR4 2400 memory keeps multiple sessions responsive
- 256GB NVMe SSD provides fast boot and app loading
- Windows 10 Pro with LAN, Wi-Fi and Bluetooth for managed deployments
Thin-client notebook for managed environments
The HP MT21 is a 14-inch thin client running Windows 10 Pro on a dual-core Intel Celeron 3865U at 1.80GHz. It carries 16GB of DDR4 2400 memory in an 8 GB x 2 configuration and a 256GB NVMe SSD. The HD panel shows 1366 x 768 resolution and a 720p webcam is integrated.
Fanless thermal profile and low power draw
The Celeron 3865U operates without a fan, so the chassis stays silent during typical office workloads. Integrated Intel HD Graphics 610 handles the display output while keeping overall power consumption modest for a device of this class.
Video outputs and legacy ports included
HDMI, VGA and DisplayPort via USB-C give three external display options without adapters. A built-in card reader, LAN, Wi-Fi and Bluetooth cover common peripheral and network needs for kiosk, point-of-sale or virtual-desktop deployments.
Highlights
- 14" HD display for clear viewing in tight spaces
- Intel Celeron 3865U 1.80GHz dual-core handles routine workloads
- 16GB DDR4 2400 memory keeps multiple sessions responsive
- 256GB NVMe SSD provides fast boot and app loading
- Windows 10 Pro with LAN, Wi-Fi and Bluetooth for managed deployments
Specifications
| Brand | HP |
|---|---|
| Series | Thin Client |
| Model | MT21 |
| Color | Silver |
| Operating System | Windows 10 Pro |
| CPU Type | Intel Celeron |
| Number of Cores | Dual-core Processor |
| Screen Size | 14.0" |
| Touchscreen | Non-Touch Screen |
| Wide Screen Support | Yes |
| Display Type | HD |
| Resolution | 1366 x 768 |
| GPU/VPU | Intel HD Graphics 610 |
| Graphic Type | Integrated Card |
| SSD | 256GB |
| HDD | No |
| Storage Spec | 256GB NVMe SSD |
| Memory | 16GB |
| Memory Speed | DDR4 2400 |
| Memory Spec | 8 GB x 2 |
| Memory Slot (Total) | 2 |
| Memory Slot (Available) | 0 |
| Max Memory Supported | 32 GB |
| LAN | 10/100/1000Mbps |
| WLAN | Wi-Fi 5 (802.11ac) |
| Bluetooth | Bluetooth 4.0 |
| USB | 2x USB 3.1 Gen 1, 1x USB-C 3.1 Gen 1 |
| Video Port | 1x HDMI, 1x VGA, 1x DisplayPort via USB-C |
| HDMI | 1 x HDMI |
| Audio Ports | 1 x Headphone/Microphone Combo Jack |
| Audio | Integrated Sound card |
| Speaker | Integrated Stereo Speakers |
| Touchpad | Yes |
| Keyboard | Standard |
| Backlit Keyboard | Non-backlit |
| Webcam | Yes |
| Card Reader | 3-in-1 |
| Type | Mainstream |
| AC Adapter/Charger | 45-watt AC Adapter |
| Battery | 3-cell Lithium Ion |
| Battery Life | > 5 hours |
| Dimensions (W x D x H) | 9.4" x 13.2" x 0.8" |
| Weight | 3 - 3.9 lbs. |
Questions about this item
How is the 256GB NVMe drive installed in the MT21, and which step do people miss?
The drive slots into the internal M.2 connector; the step most people miss is re-seating the retaining screw before refitting the bottom cover.
What maintenance or replacement will the 16GB DDR4 2400 memory need later?
The memory is soldered, so no module replacement is possible; only keep the vents clear of dust to avoid thermal throttling.
What limit appears first on the Celeron 3865U 1.80GHz under sustained load?
The dual-core processor hits its thermal ceiling first, causing clock-speed reduction before any other component saturates.
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