Site updated: 23.3.19

Good product, good service

Assembly was faster than promised, delivery to continental Europe fast. Product was good quality and well packaged. 5 star... (11th February 2019 via Trustpilot)
27in Monitor All-In-One PC Chassis
(3 customer ratings)
23in Monitor All-In-One PC Chassis
(4 customer ratings / 1 review)
21in Monitor All-In-One PC Chassis
(7 customer ratings)

mono All-In-One (AIO) 21in Monitor PC Chassis

The mono AIO chassis takes the All-In-One PC to the next level, allowing you to build a beautiful and powerful PC to your own specification... all within the monitor case!

Also see our fully-built mono All-In-One Desktop PC.

The advantages of an All-In-One (AIO) PC design are clear to see - they look great, have fewer cables and are very compact. But the downside is usually a lack of power in comparison to a conventional desktop PC. Most all-in-ones can only accommodate laptop components and from a performance point of view this means they are usually slower in comparison to their desktop equivalents. But all this changes thanks to the mono AIO chassis. At a cost of not much more than a high quality monitor, your PC can be ingeniously built into the rear of the display.


  1. Innovative AIO solution accommodates desktop components
  2. Not much more expensive than a conventional high quality monitor
  3. Eliminates the need for a separate PC case
  4. Full HD 1080p resolution display panel
  5. Reduces the number of cables for a tidier PC
  6. Available with a choice of screen size

The mono AIO chassis features a single ultra-thin pane of glass that protects the screen, giving it an elegant glossy look and enhancing colour sharpness. Along the lower edge of the monitor, a stylish white bezel sits flush along its width. Under the bezel and just right of centre there are controls for power and brightness. Hidden from sight on either side are two 3 watt stereo speakers which are connected to the motherboard audio out using the supplied internal audio cable. Of course, the use of external speakers is also possible by connecting them to the motherboard instead of the internal audio cable.

When the rear cover is removed, the AIO PCB becomes visible. This board is the brains behind the AIO and is powered by a conventional PC ATX power supply. As well as the aforementioned audio cable, a DVI cable also runs from the PCB. This cable feeds out of the rear of the cover to connect to the graphics card, or motherboard on-board DVI port if no graphics card is installed.

AIO Style. Desktop Performance.

As mentioned above, most AIO PCs use laptop components but the mono chassis has been designed to discretely accommodate "full-fat" desktop internals, allowing no-compromise performance to be enjoyed. There is space for a full-size ATX PSU, Mini-ITX motherboard, full size graphics card, a slim slot or tray-loading optical drive and a 3.5" hard drive or 1-2 2.5" SSD/HDD drives.

The chassis can achieve this because the rear of the monitor has been designed with this approach in mind. Once the black plastic cover on the rear of the monitor has been removed, the desktop components can be installed. If you think that building a PC system based on the mono AIO is too daunting or potentially time-consuming, please take a look at our fully built options.

No More Clutter

One downside to a conventional desktop PC is that there are often plenty of cables that need to be connected to various parts of the computer, such as the main unit, mouse, keyboard, monitor and speakers to name just a few! With an all-in-one design, the number of cables is drastically reduced. Because the PC is integral to the monitor, only one power cable is needed and no extra video or audio cables are needed.

Component Choices

The mono AIO chassis has been designed to accommodate components normally found in a Mini-ITX desktop PC. Due to the compact nature of the AIO there are a few specific requirements that need to be considered.

Motherboard - The AIO chassis is only compatible with Mini-ITX form factor motherboards.
Processor - We recommend Intel's latest processors or one which is compatible with the chosen motherboard.
CPU Cooler - Coolers with a height up to 65mm are compatible. It is important not to choose a cooler that is too wide as it needs to fit within a certain space. We have found the Scythe Shuriken to be ideal.
Power Supply Unit - Any PSU that is 150 x 140 x 86mm in size, (i.e. ATX) is suitable. Modular PSUs are usually longer and are therefore incompatible.
Graphics Cards - A graphics card isn't essential because most modern motherboards include on-board video which gives perfectly good performance. However, gaming enthusiasts will appreciate the ability to install a dual width graphics card with a length of up to 245mm.
Storage - The mono has a drive bay which accommodates a single 3.5" drive. It is possible to mount a 3.5" drive and a 2.5" if the 2.5" drive is attached to the top of the 3.5" using adhesive pad or velcro. Alternatively if a Twin Mounter is purchased it is possible to install two 2.5" HDD/SSDs in the drive bay instead.

The left hand photo below shows where the relevant components are installed and also other important parts of the chassis. The photo on the right is an example of a fully installed PC built into the back of the monitor. Click the images to see enlarged versions.

Specificationsmono 21in AIOmono 23in AIOmono 27in AIO
Overall dimensions (HxWxD)414 x 514 x 158mm 424 x 564 x 200mm 474 x 649 x 204mm
Motherboard compatibilityMini-ITX
PSU compatibilityStandard ATX (150 x 140 x 86mm)
Maximum CPU cooler height65 mm
Drive bays1x 3.5"
Optical driveSpace for a slimline, try or slot loading drive
Expansion slots2
Maximum PCI card length (PCB only)245 mm
Panel typeTN (Twisted Nematic)
Display Area21.5" Wide 23.6" Wide 27" Wide
Optimum Resolution1920 x 1080
Aspect Ratio16:9
Contrast Ratio1000:1 (typical) / 20,000,000:1 (dynamic)
Brightness250 cd/m² (typical) 300 cd/m² (typical)
Viewing Angles170/160° (typical)
Point distance0.24825 mm
Response Time5ms (Tr+Tf) 3.4ms (Tr+Tf)
Refresh rate60Hz
Input SignalAnalogue RGB VGA signal / Digital DVI signal
SoundIntegral 3 watt amplifier and stereo speakers
Warranty24 months

Customer Reviews

mono 27in AIO
mono 23in AIO
mono 21in AIO

We haven't received any reviews of this product yet.

Excellent Item


Such a fantastic idea and well built item. I'm EXTREMELY pleased with this. I purchased this with the recommended 970 and CPU cooler but had all other items I had to reuse. It dissipates heat well even while overclocked. The only thing that disappoints me about this is the manual for installation was absolutely terrible. A decent manual would be nice, this after all is one of a kind.

We haven't received any reviews of this product yet.

See Also


Our Address

Quiet PC Ltd
Brawby Grange
YO17 6PZ
United Kingdom

Our Numbers

Useful Information

Keep In Touch

MasterCardMaestroPayPalAmerican ExpressVisaVisa Electron
30 day money back guarantee
2 year warranty

All prices exclude import tax. © 2000-2019 Quiet PC Ltd. If you have seen an error on this page, please let us know.