Cooler Master MasterBox Q300L
Micro-ATX case
Price history
Week of 19 Oct£46.87median of 1 sale
- Target Price £43
- Week with 3+ sales
- Fewer sales
- Single sale
Fewer than two weeks here have enough sales, so no line is drawn.
Show as a table
| Week of | Median | Sales |
|---|---|---|
| 20 Jul 2026 | £60.85 | 2 |
| 27 Jul 2026 | £82.76 | 2 |
| 17 Aug 2026 | £20.75 | 1 |
| 31 Aug 2026 | £39.99 | 1 |
| 5 Oct 2026 | £63.90 | 1 |
| 19 Oct 2026 | £46.87 | 1 |
What the sales show
About 1 sale a week in the four weeks to 20 Oct.
Before you buy or sell a used MasterBox Q300L
This 2018 Micro-ATX case uses an acrylic side window rather than glass, held by four rubberised corner screws that double as horizontal feet. Acrylic scratches easily, so inspect close-up photos of the window and confirm both patterned magnetic dust filters are present.
Do not confuse the Q300L with the handled Q300P or the ATX-sized Q500L. Check that the movable side I/O module works and the stock rear 120mm fan is included.
Recent UK sales
- 20 OctCooler Master MasterBox Q300L Black MicroATX Mini Tower Case MCB-Q300L-KANN-S0020 Oct£46.87
- 11 Oct4719512065488 PC Case MasterBox Q300L (USB 3.0, window) Cooler Master11 Oct£63.90
- 3 SeptCooler Master MasterBox Q300L Black MicroATX Mini Tower Case MCB-Q300L-KANN-S003 Sept£39.99
- 21 AugCooler Master MasterBox Q300L Mini Tower Case - Black21 Aug£20.75
