1. Product Overview
The Maclean MC-103 B is an extendable under-desk cable organizer designed to manage and conceal power strips, cables, and adapters, creating a neat and organized workspace. Its robust steel construction and clamp-based mounting system ensure stability and easy installation without drilling. The adjustable length feature allows it to adapt to various desk sizes and cable management needs.

Image 1.1: The Maclean MC-103 B cable organizer installed under a white desk, effectively managing a power strip and multiple cables for a tidy setup.
2. Safety Information
Please read and understand all instructions before installation and use. Keep this manual for future reference.
- Ensure the desk surface is stable and capable of supporting the weight of the organizer and its contents (up to 5 kg).
- Do not overload the organizer beyond its maximum weight capacity.
- Keep cables neatly arranged to prevent tripping hazards or damage.
- Avoid placing the organizer in areas where it may be exposed to excessive moisture or extreme temperatures.
- Periodically check the clamps for tightness to ensure secure attachment to the desk.
3. Package Contents
Verify that all components are present before beginning installation:
- 1x Maclean MC-103 B Extendable Cable Organizer
- 2x Desk Clamp Mounts
- Mounting Hardware (screws, nuts, washers)
- Velcro Cable Clips (quantity may vary)
- Instruction Manual
4. Setup and Installation
The MC-103 B cable organizer features a non-invasive clamp mounting system, requiring no drilling into your desk.
4.1 Adjusting Length
- Loosen the screws connecting the two main sections of the organizer.
- Slide the sections apart or together to achieve the desired length between 433 mm and 728 mm.
- Tighten the screws securely to fix the chosen length.

Image 4.1: The cable organizer's length can be adjusted from 433 mm to 728 mm to fit various desk sizes.
4.2 Attaching to Desk
- Attach the two clamp mounts to the ends of the cable organizer using the provided hardware. Ensure they are securely fastened.
- Position the organizer under your desk at the desired location.
- Place the upper part of each clamp over the edge of your desk.
- Tighten the adjustment knob on each clamp until the organizer is firmly secured to the desk. The clamps are suitable for desk thicknesses between 5 mm and 50 mm.
- Verify that the organizer is stable and does not wobble before placing any items inside.

Image 4.2: Close-up of the clamp mechanism, illustrating its compatibility with desk thicknesses from 5 mm to 50 mm.
5. Operating Instructions
Once installed, the Maclean MC-103 B cable organizer is ready for use.
- Place your power strip(s) inside the tray. The open design allows for easy access to outlets.
- Route your cables through the integrated cable passages and slots along the organizer. This helps prevent tangles and keeps cables neatly separated.
- Use the included velcro cable clips to bundle and secure excess cable length, further enhancing organization.
- Ensure cables are not strained or pinched, allowing for proper airflow and preventing damage.

Image 5.1: A cable secured with a velcro strap within the organizer, showcasing effective cable management.
6. Maintenance
Regular maintenance will ensure the longevity and continued performance of your cable organizer.
- Cleaning: Wipe the organizer with a soft, damp cloth. Avoid abrasive cleaners or solvents that could damage the finish.
- Inspection: Periodically check all screws and clamp knobs to ensure they remain tight. Re-tighten if necessary.
- Cable Management: Review your cable arrangement occasionally to ensure no cables are tangled, pinched, or causing strain on connections.
7. Troubleshooting
If you encounter any issues with your cable organizer, refer to the following common solutions:
- Organizer is wobbly: Ensure both clamp mounts are securely tightened to the desk. Check that the screws connecting the organizer sections are also tight.
- Cables are still messy: Utilize the integrated cable passages and the provided velcro clips to bundle and route cables more effectively. Re-evaluate the placement of power strips and devices.
- Organizer does not fit desk: Verify your desk thickness is within the 5-50 mm range for the clamps. Ensure the organizer's length has been adjusted correctly for your desk width.
8. Specifications
- Model:
- MC-103 B
- Material:
- Powder-coated Steel, ABS
- Color:
- Black
- Adjustable Length:
- 433 mm - 728 mm
- Desk Thickness Compatibility:
- 5 mm - 50 mm
- Maximum Load Capacity:
- 5 kg
- Overall Dimensions (min length):
- Approx. 433 x 130 x 190 mm (L x W x H)
- Overall Dimensions (max length):
- Approx. 728 x 130 x 190 mm (L x W x H)
- Product Weight:
- Approx. 1.36 kg

Image 8.1: Technical drawing with key dimensions of the cable organizer.
9. Warranty and Support
Maclean products are designed for durability and performance. For warranty information or technical support, please refer to the documentation provided with your purchase or visit the official Maclean website. Keep your proof of purchase for warranty claims.