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Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser Cable 300mm AC-058-CO1OTN-C1
Thermaltake

Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser Cable 300mm AC-058-CO1OTN-C1

Bottom line: The Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser ($99.99 on Amazon as of 2026-10-06): PCI-E 4.0 rated for full-bandwidth GPU signaling, not a 3.0 cable rebadged; main trade-off: 79.99 USD sits above generic risers with similar length specs.

$99.99

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Buy on Amazon — $99.99 Compare to similar expansion cards

By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ PCI-E 4.0 rated for full-bandwidth GPU signaling, not a 3.0 cable rebadged
  • ✓ EMI shielding uses conducting polymer to limit interference in tight builds
  • ✓ 300mm length suits compact and space-constrained chassis layouts
  • ✓ Foldable, highly routable jacket bends around cable-management channels

Cons

  • ✗ 79.99 USD sits above generic risers with similar length specs
  • ✗ 300mm may be too short for full-tower vertical GPU mounts
  • ✗ No PCI-E 5.0 rating, so next-gen GPU headroom is not claimed
  • ✗ Thermaltake lists 600mm and 90-degree variants separately, not in the box

Manufacturer description

Thermaltake has launches the latest Thermaltake TT Premium PCI-E 4.0 Extender series with ultra-excellent quality to meet the most demanding system. Features like, extreme high-speed cable with highly-routable and foldable design, EMI shielding with conducting polymer, special cable protector are crafted for exceeding your expectation. Available in 300mm, 600mm, and 300mm with 90-degree adapter, the TT Premium PCI-E 4.0 Extender series supports a wide range of GPU solutions and matches the cable included in any chassis. • P/N: AC-058-CO1OTN-C1 •MODEL: TT Premium PCI-E 4.0 Extender 300mm…

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SpecPicks Verdict

SpecPicks scored Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser… using a rating × review-volume × price-fit model applied to published specs and reviews across the expansion cards category. Thermaltake's expansion cards lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for expansion cards of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Ultimate High Speed Cable
  • Crafted for Space-Saving
  • EMI Shielding with Conducting Polymer
  • Unique Cable Protector
  • Easy Installation

Full Specifications

BrandThermaltake
Model NameTT Premium PCI-E 4.0 Extender 300mm
Unit Count1 Count
Model NumberAC-058-CO1OTN-C1
Built-In MediaPCIE Cable
GPU Clock Speed2000 MHz
Mfr Part NumberAC-058-CO1OTN-C1
Video ProcessorNVIDIA
Antenna Locationtransferring data
Compatible DevicesCompatible with Graphic Cards with PCI-E Connector
Graphics CoprocessorNvidia
Warranty Description2 year manufacturer
Video Output InterfacePCI Express
Graphics Card InterfacePCI-Express x16
Display Maximum Resolution8K
Display Resolution Maximum7680x4320
Graphics Processor ManufacturerNVIDIA

Ready to buy?

Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser Cable 300mm AC-058-CO1OTN-C1 is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $99.99

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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Thermaltake TT Premium PCI-E 4.0 High Speed Flexible Extender Riser Cable 300mm AC-058-CO1OTN-C1
$99.99
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