HP mt21 CEL-3867U 8GB2 128GB-SSD 14inFHD W10 IoT - 3JH25EA

£362.38 £301.98
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HP mt21 CEL-3867U 8GB2 128GB-SSD 14inFHD W10 IoT - 3JH25EA

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Style, Substance, and ValueThe stylish new HP mt21 Mobile Thin Client is fully-featured, thin, and light. Stay productive in the office and on the go. A rich user experience with tight security wherever you take it.

Short Description HP mt21 CEL-3867U 8GB2 128GB-SSD 14inFHD W10 IoT - 3JH25EA
mpn 3JH25EA
Screen Size 14.0in
Harddrive Size 128GB


Product type Mobile thin client
Product colour Black, Silver
Form factor Clamshell
Country of origin China


Display diagonal 35.6 cm (14")
Display resolution 1920 x 1080 pixels
HD type Full HD
Panel type SVA
LED backlight
Native aspect ratio 16:9


Processor family Intel® Celeron®
Processor manufacturer Intel
Processor model 3867U
Processor frequency 1.8 GHz
Processor threads 2
System bus rate 4 GT/s
Processor cores 2
Processor cache 2 MB
Processor cache type Smart Cache
Processor socket BGA 1356
Processor lithography 14 nm
Processor operating modes 64-bit
Processor series Intel Celeron Processor 3000 series for Mobile
Processor codename Kaby Lake R
Bus type OPI
Thermal Design Power (TDP) 15 W
Configurable TDP-down 12.5 W
Configurable TDP-down frequency 0.8 GHz
Tjunction 100 °C
Maximum number of PCI Express lanes 12
PCI Express slots version 3.0
PCI Express configurations 1x2+2x1, 1x4, 2x2, 4x1


Internal memory 8 GB
Internal memory type DDR4-SDRAM
Memory clock speed 2400 MHz
Memory form factor SO-DIMM
Memory layout (slots x size) 2 x 4 GB
Memory slots 2x SO-DIMM


Total storage capacity 128 GB
Storage media SSD
Optical drive type
Total SSDs capacity 128 GB
Number of SSDs installed 1
SSD capacity 128 GB
SSD form factor M.2
Card reader integrated
Compatible memory cards SD, SDHC, SDXC


On-board graphics card
Discrete graphics card
Discrete graphics card model Not available
On-board graphics card model Intel® HD Graphics 610
On-board graphics card family Intel® HD Graphics
On-board graphics card base frequency 300 MHz
On-board graphics card dynamic frequency (max) 900 MHz
Maximum on-board graphics card memory 32 GB
Number of execution units 12
On-board graphics card DirectX version 12.0
On-board graphics card OpenGL version 4.4
On-board graphics card ID 0x5906


Number of built-in speakers 2
Built-in microphone


Front camera
Front camera signal format 720p


Top Wi-Fi standard Wi-Fi 5 (802.11ac)
Wi-Fi standards 802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
Antenna type 2x2
Ethernet LAN
Ethernet LAN data rates 10,100,1000 Mbit/s
Bluetooth version 4.2

Ports & interfaces

USB 3.2 Gen 1 (3.1 Gen 1) Type-A ports quantity 2
USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity 1
HDMI ports quantity 1
Ethernet LAN (RJ-45) ports 1
HDMI version 1.4b
VGA (D-Sub) ports quantity 1
Combo headphone/mic port


Numeric keypad
Pointing device Clickpad


Operating system installed Windows 10 IoT Enterprise
Operating system architecture 64-bit

Processor special features

Intel® My WiFi Technology (Intel® MWT)
Intel® Smart Response Technology
Intel® Hyper Threading Technology (Intel® HT Technology)
Intel® Turbo Boost Technology
Enhanced Intel SpeedStep Technology
Intel® Clear Video HD Technology (Intel® CVT HD)
Intel Clear Video Technology
Intel® Quick Sync Video Technology
Intel Flex Memory Access
Intel® AES New Instructions (Intel® AES-NI)
Intel Trusted Execution Technology
Intel Enhanced Halt State
Intel VT-x with Extended Page Tables (EPT)
Intel® Secure Key
Intel TSX-NI
Intel Stable Image Platform Program (SIPP)
Intel® OS Guard
Intel Software Guard Extensions (Intel SGX)
Intel® Clear Video Technology for Mobile Internet Devices (Intel CVT for MID)
Intel 64
Execute Disable Bit
Idle States
Thermal Monitoring Technologies
Processor package size 42 X 24 mm
Supported instruction sets SSE4.1, SSE4.2
CPU configuration (max) 1
Embedded options available
Intel Virtualization Technology for Directed I/O (VT-d)
Intel Smart Response Technology version 1.00
Intel Stable Image Platform Program (SIPP) version 0.00
Intel Secure Key Technology version 1.00
Intel TSX-NI version 0.00
Intel Virtualization Technology (VT-x)
Processor ARK ID 189270

Brand-specific features

HP speaker type HP Dual Speakers
HP front camera HP Webcam
HP segment Business


Battery capacity 48 Wh
Battery technology Lithium Prismatic
Number of battery cells 3


AC adapter power 45 W


Cable lock slot
Trusted Platform Module (TPM)


Sustainability certificates ENERGY STAR

Weight & dimensions

Weight 1.63 kg
Width 336 mm
Depth 238 mm
Height 19.9 mm

Other features

AC adapter included

Affordable performance

7th generation Intel® Celeron® processor matched with a 128 GB flash memory drive and DDR4 SDRAM system memory delivers commercial notebook PC-like performance for a cloud optimized mobile thin client [3,4]

Power through the day

Outstanding battery life gets you through a day of back-to-back meetings without plugging in. HP fast-charging technology recharges your battery 90% in 90 minutes. [5]

Secure critical data

The Trusted Platform Module 2.0 embedded security chip (TPM) provides hardware-based encryption keys to help secure your data, e-mail, and user credentials.

Protected, wherever you are

Whether it’s the optional finger print reader, Windows 10 Iot Enterprise security features, or the locked file system of HP ThinPro, malware and security attacks don’t stand a chance when you’re on the move.

Cloud-ready & VDI-optimized

Hardware and software optimized for the newest commercial cloud ecosystems and VDI-optimized for traditional server-based computing strategies.

Stable and reliable

Proven quality and reliability ensured through no less than 120,000 hours of reliability testing through HP’s Total Test Process and passed MIL-STD testing. [1]

Protection from spills

The elegantly designed HP Premium Keyboard offers peace of mind and protection from minor spills with a thin layer of mylar film. With the backlit option, the easy to read keys will also remain smooth from consistent force.

Powerful sound

Dramatically improve the audio from your computer with HP Audio Boost. You will experience impressive clear sound quality and the right balance for the ultimate listening experience.

Easily connect

The full-size ports allow you to connect to projectors or a wired network with no adapter cables. You can also charge your phone, connect to displays and dock with USB-C™ port.

Remote management made simple

HP Device Manager allows you to streamline the management of all your thin client devices. You can securely, efficiently and remotely control the full life cycle of the deployed thin client devices.

Ultra Slim. Ultra Durable.

The HP mt21 Mobile Thin Client delivers stylish design to every business. An ultra-slim exterior encases a stylish robust aluminum keyboard deck. Passed MIL-STD 810G testing to help ensure durability and sturdiness.[1]

Your office, wherever you go

An intense rich, immersive user experience is delivered through a 14” diagonal display, with HP Audio Boost and HP Noise cancellation. Delve in with built in speakers and microphone with high-definition 720p webcam[2] for optimal mobile collaboration.

Keep your desk clutter-free

With a single cable, it’s simple to make a quick transition to desktop productivity. Supporting docking via USB-C™, connect to multiple external displays, as well as a power source and a gigabit network connection through optional docks.[2]

This item has been used for demonstration purposes only. It has been thoroughly checked by our engineers for any marks, scuffs or defects and is in excellent condition. These units will have very little or no signs of use whatsoever.

The original box will have been opened and resealed but it comes with all original packaging and accessories.

These units come with the remainder of the manufacturer's warranty or a one year warranty provided by us, whichever is greater.

HP Commercial Products (i.e. The Elite range of notebooks and desktops, ZBooks, Elitedesks, Z Range Workstations etc.) usually have around 2 years manufacturer's warranty remaining.

The entry level business products and consumer ranges (Probooks, Prodesks, Envy, Pavilion etc.) have a one year warranty.

All other units including printers have a one year warranty.