The cable you're referring to is commonly known as a "DVI-D dual link cable." Here's a breakdown:

- **DVI-D**: This indicates that the cable carries a digital signal only (no analog), which is typical for modern displays and graphics cards.
- **Dual Link**: The "24+1" means it supports dual-link DVI, which allows for higher resolutions and refresh rates compared to single-link DVI cables.
- **5M**: This specifies the length of the cable, which is 5 meters.
- **[OEM]**: Indicates that it's an Original Equipment Manufacturer cable, meaning it's made by the same company that produces the equipment it's designed for.

So, you might also hear it referred to as a "DVI-D Dual Link 24+1 Cable" or simply a "DVI to DVI Cable."