Dataflex Addit document holders and risers
Dataflex · Addit and Bento
Addit document holders, laptop and monitor risers
Small accessories that make a big difference. A document holder between keyboard and screen. A laptop or monitor at eye level. A footrest under the desk. That is how you turn a good workstation into a complete workstation.
What Addit does for your workstation
Addit is the accessory line from Dataflex. The Dutch family business made its first acrylic monitor stands and document holders back in 1986. Addit complements the Dataflex monitor arms, but works just as well on its own.
The document holders and risers are largely made of clear acrylic. They disappear on the desk and fit into any working environment. Anyone who often has paper beside the screen will get a lot out of a document holder. Anyone working on a laptop raises the screen to eye level with a riser. The Bento toolbox combines storage and raising for flexible workstations.
Document holders
All Addit versions →
Document holder BN410
Fixed height 190 mm · up to A3
Between keyboard and monitor for an equal viewing distance. You store the keyboard under the holder.

Document holder adjustable BN400
136–206 mm in 6 steps · up to A3
Lift the holder and slide the keyboard underneath when you do not need it.

Document holder BN410 adjustable
160–235 mm in 6 steps · up to A3
With a raised bottom edge, so the keyboard slides underneath easily.

Document holder adjustable BN440
130–215 mm in 6 steps · up to A3
With a flat edge that makes writing easy. Recommended by the IGR.

Document holder adjustable BN402
Steel · height, depth and angle
A sturdy platform, also for heavy books and files. With a magnetic ruler.
The document holders side by side
| Model | Dimensions (w × d × h) | Adjustment | Material | Max. weight | Size |
|---|---|---|---|---|---|
| BN410 | 510 × 270 × 190 mm | Fixed height | Clear acrylic 5 mm | 6 kg | Up to A3 |
| BN400 | 536 × 270 × 136–206 mm | Height, 6 steps | Clear acrylic 5 mm | 6 kg | Up to A3 |
| BN410 adjustable | 536 × 278 × 160–235 mm | Height, 6 steps | Clear acrylic 5 mm | 6 kg | Up to A3 |
| BN440 | 536 × 304 × 130–215 mm | Height, 6 steps | Clear acrylic 5 mm | 6 kg | Up to A3 |
| BN402 | On request | Height, depth and angle | Steel | On request | Up to A3 |
Dimensions and weights according to the Dataflex specifications. Would you like to know the dimensions of the BN402? Ask us for them.

Why a document holder between keyboard and screen
If your document lies flat beside the keyboard, you keep turning your head sideways and down. If it is in line with the keyboard and the screen, you look straight ahead and at an equal distance. That spares your eyes and your neck.
All holders take documents, books and folders up to A3. The fixed BN410 and the adjustable BN400, BN410 and BN440 are made of clear acrylic and carry up to 6 kg. The BN402 is made of steel and also adjusts for depth and angle.
View the document holders →Laptop and monitor at the right height
All risers →
Laptop holder adjustable BN388
Hylite · 360 g · laptops up to 18"
Folds down to 6 mm. Six tilt positions from 37° to 58°. The cover also serves as a mouse mat.

Notebook stand TH450
Clear acrylic 4 mm · max. 6 kg
Brings the screen to eye level. With ventilation cut-outs; all ports stay accessible.

Monitor riser TH550
70–130 mm in 5 steps · max. 15 kg
For any monitor up to 15 kg. Made of clear 5 mm acrylic and space-saving: 320 × 256 mm.
The risers and the Bento side by side
| Model | For | Height | Adjustment | Max. weight | Material |
|---|---|---|---|---|---|
| BN388 | Laptops up to 18" | 151–211 mm | 6 tilt positions, foldable | 4 kg | Hylite (aluminium and PP) |
| TH450 | Laptops up to 15" | Adjustment range 70 mm | Height-adjustable | 6 kg | Clear acrylic 4 mm |
| TH550 | Monitors | 70–130 mm | 5 steps of 15 mm | 15 kg | Clear acrylic 5 mm |
| Bento BN900 | Laptops up to 15", A4 | Lid 134–240 mm | 4 tilt positions | 6 kg | With a silicone mat |

A footrest for anyone whose feet are not flat on the floor
Do your feet not reach the floor properly, for example at a fixed desk? Then a footrest supports your legs. Indirectly that relieves your lower back, so you sit upright with less effort.
The BN513 is 450 mm wide. You set it to a height of 79 to 111 mm and to an angle of 7°, 10°, 14° or 17°.
View the footrest →Bento toolbox
The Bento is inspired by the Japanese lunch box. You store your things, A4 documents and devices up to 12" in it. A pre-formed silicone rubber mat protects the contents. The lid tilts into four positions and is adjustable from 134 to 240 mm. With the magnetic support edge you use it as a laptop holder, tablet holder or document holder. Ideal for flexible workstations and agile working.
Related lines and more about ergonomics
All about Dataflex →Addit completes the workstation. The screen itself is best placed on a Dataflex monitor arm: the Viewlite in recycled aluminium, the Viewprime plus with a gas lift, the steel Viewmate or a Viewmaster for several screens. Which arm suits you, you can read on the Dataflex brand page.
Would you like to set up the whole workstation ergonomically? Read our page on ergonomic working and the blog Essential ergonomic accessories: complete your workstation.
Why buy Dataflex from us
The accessories are Dutch. The interior is our work.
- On-site advice, and a free 2D or 3D floor plan of your space
- Delivery and installation by our own fitters
- One point of contact from the first conversation through to handover
- 1,000 m² showroom in Moordrecht, where you can try the furniture out yourself
- We take back old furniture for reuse

A proposal for your workstation accessories
Tell us how many workstations you want to supplement and with what, and we will put together the right Addit accessories for you — without obligation.
A little more about warranty and sustainability
Almost the entire Dataflex range comes with a 5-year warranty as standard. Using a form at Dataflex you extend that free of charge to 15 years for most products. Dataflex is a Certified B Corporation and has offset its scope 1, 2 and 3 emissions since 2019. In the Addit collection you will find the dimensions and the price for each item. Not sure which document holder or riser fits? Call us, or come and try them in our showroom.
Frequently asked questions
Yes, lease and financing are also available for self-employed professionals (ZZP'ers) and sole proprietorships, provided you meet the creditworthiness requirements.
With operational lease, you can choose to return, extend, or purchase the asset at its residual value. With financial lease, you automatically become the owner.
All costs are communicated clearly in advance. There are no hidden fees.
This depends on the type of financing and the terms and conditions. We would be happy to discuss this with you.

