StarTech 50cm Thunderbolt 3 Cable vs USB C to DisplayPort 2.1 adapter, 80Gbps, USB4

Overall winner: USB C to DisplayPort 2.1 adapter, 80Gbps, USB4

Key Differences

StarTech (A) is a Thunderbolt 3 cable offering 40 Gbps throughput and up to 100W power delivery with a braided shield—good for power and high-speed cable use. Cable Matters (B) is a USB-C to DisplayPort 2.1 adapter with up to 80 Gbps and support for very high-resolution/refresh displays (16K@60Hz, 8K@240Hz), but has mixed compatibility feedback

StarTech 50cm Thunderbolt 3 Cable

StarTech 50cm Thunderbolt 3 Cable

StarTech • ★ 3.7/5 • Budget

Active 50cm passive Thunderbolt 3 cable delivering up to 40 Gbps and 100W charging for Thunderbolt 4/3/USB-C devices. Supports up to 5K 60Hz or dual 4K 60Hz; robust construction for durability. One customer note highlights strong build and speed, with some mixed feedback on length

Pros

  • high-speed 40 Gbps throughput
  • 100W power delivery
  • robust braided shield construction
  • compatible with Thunderbolt 4/3 and USB-C

Cons

  • mixed feedback on cable length
  • some users report it stops working after time
  • video quality may have audio limitations per user
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USB C to DisplayPort 2.1 adapter, 80Gbps, USB4

USB C to DisplayPort 2.1 adapter, 80Gbps, USB4

Cable Matters • ★ 3.5/5 • Mid-Range

USB-C to DisplayPort 2.1 adapter enabling up to 16K@60Hz and high-refresh 4K/8K/16K output. Compatible with Thunderbolt 5/4 and USB4 for VR headsets and laptops. Customer note: functionality is good, with mixed feedback on compatibility

Pros

  • high bandwidth up to 80Gbps
  • supports 16K@60Hz
  • 4K@960Hz and 8K@240Hz support
  • Thunderbolt 5/4 and USB4 compatible

Cons

  • mixed feedback on compatibility
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Head-to-Head

CriteriaWinner
Price StarTech
Durability Tie
Versatility Cable Matters
User Reviews StarTech