Bringing power and USB charging within easy reach of the workstation makes desks more practical, reduces reliance on loose chargers and helps create a cleaner workspace.
One of the first decisions when specifying desk power is whether the unit should sit on the desk or be integrated into the work surface.
Both approaches can provide mains power, USB charging and connectivity, but there are important differences in installation, appearance, flexibility and how the desk will be used.
In this guide, we compare in-desk and on-desk power units to help you decide which approach is best for your office, meeting room or workspace.
What is an on-desk power unit?
An on-desk power unit is mounted above the work surface, giving users direct access to power and charging without reaching underneath the desk.
One example is the Protea on-desk power unit. It uses a desk clamp rather than requiring a cut-out in the worktop, making it particularly useful where desks are already installed or where permanent modification to the furniture is undesirable.
Depending on the configuration, on-desk units can combine UK mains sockets with USB charging and data connectivity in one compact module.
What is an in-desk power unit?
In-desk power units are installed into an opening in the desk or work surface so that the power solution becomes part of the furniture itself.
There are several different styles.
A compact grommet unit such as the Punto fits into an 80mm mounting hole and sits almost flush with the desktop, while larger units such as the Wave provide a concealed opening system with space for power, USB charging and optional data connections.
Other designs, including the Omega, provide a slim integrated solution where available desk space is more limited.
You can browse the wider in-desk power unit range here.
In-desk vs on-desk power at a glance
| Consideration | On-desk | In-desk |
|---|---|---|
| Installation | Typically quicker with minimal desk modification | Requires a suitable opening or cut-out |
| Appearance | Visible above the work surface | Integrated into the furniture |
| Accessibility | Very easy to reach | Easy to reach, depending on the design |
| Retrofit suitability | Excellent | Depends on the desk and available cut-out |
| Flexibility | Easier to reposition or change | More permanently integrated |
| Minimal appearance | Good with a compact unit | Usually the strongest option |
1. Installation: how much can you modify the desk?
Installation is often the biggest difference between the two approaches.
A clamp-mounted on-desk unit can normally be installed without cutting into the work surface. This makes on-desk power particularly attractive for existing offices, rented furniture or projects where disruption needs to be kept to a minimum.
For example, the Protea is supplied with a desk clamp and can be added without creating a permanent opening in the worktop.
In-desk units require more planning.
Some products use a relatively small standard opening. The Punto, for example, is designed around an 80mm mounting hole. Larger integrated products may require a specific rectangular cut-out, so dimensions should always be confirmed before any furniture is cut.
For a new furniture project this is usually straightforward because the openings can be incorporated during manufacture or installation. Retrofitting an existing office requires a little more consideration.
2. Appearance: visible or integrated?
If creating the cleanest possible work surface is the priority, an in-desk solution often has the advantage.
Low-profile products can sit almost flush with the desk, while opening or retractable units can conceal their connections when they are not required.
This can work particularly well in:
- Boardrooms
- Meeting tables
- Reception areas
- Premium office furniture
- Collaborative workspaces
However, modern on-desk units are considerably smaller than traditional extension blocks. A compact unit positioned at the rear of a workstation can provide easy access to power without dominating the desk.
The right choice therefore depends on whether you want the power unit to become an intentional part of the workspace or disappear into the furniture as much as possible.
3. Accessibility: who needs to connect devices?
Think about how frequently users will plug and unplug equipment.
At a permanent workstation, monitors, computers and docking stations may remain connected underneath the desk, while the desktop unit is mainly used for phones, laptops and temporary devices.
In that situation, an easily accessible on-desk unit can be extremely convenient.
Meeting rooms can be different. Users may arrive with different laptops and need temporary access to power, USB charging or data. An in-desk unit positioned centrally within the table can make connections accessible to multiple users without placing a separate power module permanently above the work surface.
4. USB-C charging can influence the decision
Desk power is increasingly about more than 13A sockets.
USB-C can allow compatible phones, tablets and laptops to charge directly from the desk power unit, reducing the number of separate plug-in chargers required around the workstation.
When comparing products, pay attention to the charging output as well as the connector type.
For example, the Protea is available with 45W USB charging configurations, while selected in-desk products can provide higher-output USB-C charging for more demanding devices.
The best specification therefore depends on the equipment employees actually use rather than simply choosing the largest wattage available.
5. Consider what is happening underneath the desk too
Whether the visible unit is mounted on or in the desk, it still needs to connect into the wider furniture power system.
A typical workstation may also use:
- Under-desk power distribution
- Mains power leads
- GST18 interconnecting cables
- Data cabling
- Cable baskets or trays
- Vertical cable management
Planning these components together normally produces a much cleaner result than choosing the desktop unit first and working out the cabling afterwards.
Our under-desk power range and cable management products can be used alongside the visible desk power unit to create a complete workstation solution.
When should you choose on-desk power?
On-desk power is particularly worth considering when:
- You are upgrading existing desks
- You want to avoid cutting the worktop
- Fast and straightforward installation is important
- Users frequently connect and disconnect devices
- You may want to reposition the unit later
- Easy access is more important than completely concealing the power unit
For these applications, a compact unit such as the Protea can provide a straightforward way to bring mains power and USB charging onto the workstation.
When should you choose in-desk power?
In-desk power is particularly suitable when:
- You are specifying new office furniture
- A clean, integrated appearance is important
- The furniture can be prepared with the required cut-out
- You are fitting meeting or boardroom tables
- Power needs to be positioned centrally within a large work surface
- You want the unit to sit flush or be concealed when not in use
Options range from compact grommet products such as Punto to larger integrated units such as Wave, allowing the solution to be matched to both the furniture and the required connectivity.
Can you combine on-desk and under-desk power?
Yes. In many workstations this is the most practical arrangement.
The visible desk power unit can provide convenient access for everyday charging and temporary devices, while an under-desk unit supplies equipment that normally remains permanently connected, such as monitors or docking stations.
This keeps permanent plugs away from the work surface while ensuring the connections users regularly need remain easy to reach.
Which is best?
There is no single solution that is right for every office.
Choose on-desk power when accessibility, simple installation and retrofit flexibility are the priorities.
Choose in-desk power when a more integrated appearance and furniture-led installation are more important.
For larger fit-outs, the most effective approach is usually to consider the visible desk unit, under-desk distribution, USB-C requirements and cable management as one complete system.
Tip: Always confirm product dimensions and installation requirements before drilling or cutting office furniture. If you are planning a larger installation, our project support team can help identify suitable desk power and distribution options before products are ordered.