DisplayPort 2.1 DP40 6ft Cable - VESA Certified 8K/4K Performance

In this review the StarTech.com 6ft DisplayPort 2.1 cable is examined for users who need reliable high-bandwidth video and audio connectivity. The bottom line: this VESA-Certified DisplayPort 2.1 cable is best for workstations and high-performance GPUs that require UHBR10 bandwidth for 8K 60Hz with DSC or ultra-high refresh rates at lower resolutions, delivering consistent signal quality and sturdy connectors throughout everyday and pro use.

Key Features

• DP40 40Gbps: Supports UHBR10 bandwidth for 8K 60Hz with DSC and sustains large data throughput for demanding video workflows.
• VESA certified: Guarantees compatibility with DP 2.1 devices and reliable signal consistency across modern DisplayPort displays.
• Durable construction: Nickel-plated ends, aluminum mylar shielding and halogen-free TPE jacket improve longevity and EMI protection in tight setups.
• Latching connectors: Prevent accidental disconnection on desktops and AV racks where cables are moved or tensioned.
• Flexible jacket: TPE jacket routes easily through corners and desk edges while withstanding repeated bending tests for practical cable management.

Who It's For

The cable is aimed at creative professionals, gamers, and AV technicians who pair modern GPUs or MST hubs with 8K or high-refresh 4K displays and need guaranteed DP 2.1 performance. It suits desktops, docking stations, and MST daisy-chain setups where reliability and bandwidth matter.

Casual users with basic 1080p monitors or those who only need short, inexpensive cables may find this cable more capability than required; likewise, users needing active conversion to other connector types should look for a dedicated adapter instead.

Pros & Cons

Pros

• VESA certification ensures true DP 2.1 performance and backward compatibility with earlier DP versions.
• High bandwidth DP40 (40Gbps) supports 8K 60Hz with DSC and high-refresh 4K displays up to 144Hz.
• Robust build with nickel-plated, latching connectors and aluminum mylar shield for secure, low-interference connections.
• Flexible TPE jacket and strain reliefs make routing through tight spaces straightforward.

Cons

• At 6 ft length it may be longer than some desktop runs require, and there is no shorter length option in this listing.

Specifications

Length	6 ft
Standard	VESA-Certified DisplayPort 2.1
Bandwidth	DP40 (40Gbps)
Resolutions / Refresh	8K 60Hz w/ DSC, 4K 144Hz, 1440p 240Hz
Audio	32-channel audio
Jacket & Build	Flexible TPE jacket, nickel-plated ends, aluminum mylar shield
Color & OD	Black; 6.5mm (0.26in) O.D.

Our Verdict

For anyone driving 8K displays, high-refresh 4K panels, or building MST daisy-chain setups, this VESA-certified DisplayPort 2.1 cable delivers the bandwidth and build quality needed for reliable pro-level connections. It represents good value for users who need future-proofed DP 2.1 performance and robust physical construction.

Frequently Asked Questions

Will this cable work with older DisplayPort devices?
Yes. It is backward compatible with DP 2.0, 1.4 and 1.2 devices and will negotiate lower modes when needed.

Can it support G-Sync or FreeSync?
Yes. The cable supports VRR technologies such as G-Sync and FreeSync when the display and GPU also support those features.

Is the cable shielded for EMI protection?
Yes. It includes an aluminum mylar shield and robust connectors to reduce interference in AV and workstation environments.