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Fasgear 16 Pin GPU Cable Adapter Extension Cable, Black
Fasgear

Fasgear 16 Pin GPU Cable Adapter Extension Cable, Black

Bottom line: The Fasgear 16 Pin GPU Cable Adapter Extension Cable ($21.49 on Amazon as of 2026-10-21 10:14 UTC): 16AWG tinned copper wire, thicker than standard 18AWG; main trade-off: requires two free 8-pin PCIe ports on the power supply.

$21.49

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Mike Perry — Hardware researcher since 2014, focused on GPU performance across gaming, rendering, and local-LLM inference. Synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides.

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ 16AWG tinned copper wire, thicker than standard 18AWG
  • ✓ Rated for up to 600W through a 16-pin 12V-2x6 connector
  • ✓ 30cm length vs. the ~10cm stock adapter for cleaner routing
  • ✓ Includes 4 clear acrylic cable combs for tidy sleeved runs
  • ✓ Fits 16-pin RTX 5070, 5070 Ti, 4090, 4080, 4070 Ti and 3090 Ti

Cons

  • ✗ Requires two free 8-pin PCIe ports on the power supply
  • ✗ Not compatible with 12-pin or 8-pin GPUs such as the RTX 3090
  • ✗ Fasgear advises a 3x or 4x 8-pin cable for RTX 5080 and 5090
  • ✗ Adds another connection point between the PSU and the GPU

Manufacturer description

The Fasgear 16 Pin GPU Cable Adapter Extension Cable connects a 16-pin (12+4) 12VHPWR / 12V-2x6 graphics card to two standard 8-pin PCIe outputs on your power supply. It is built for GeForce RTX 5070, 5070 Ti, 4090, 4080, 4070 Ti, 16-pin RTX 4070 and 3090 Ti cards, and it is rated for up to 600W. At 30cm, it is much longer than the roughly 10cm adapter that ships with many cards. The extra length lets you run power behind the motherboard tray instead of bending a short dongle across the window. The sleeved black cable uses 16AWG tinned copper wire, which is thicker than standard 18AWG and…

SpecPicks Verdict

SpecPicks scored Fasgear 16 Pin GPU Cable Adapter Extension Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the graphics cards category. Fasgear's graphics 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 graphics 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.

Frequently Asked Questions

Will this Fasgear cable work with my RTX 3090?

No. It only fits GPUs with a 16-pin (12+4) 12VHPWR / 12V-2x6 socket. Cards with 12-pin or 8-pin connectors, like the RTX 3090 and 8-pin RTX 4070 models, are not supported.

How many PCIe connectors does my power supply need?

Two free 8-pin PCIe ports. Fasgear warns that connecting fewer than two can damage your system, so fill both 8-pin plugs.

Is it safe to use with an RTX 5090 or 5080?

The cable is rated for up to 600W, but for RTX 5080 and 5090 cards Fasgear recommends a 3x 8-pin or 4x 8-pin cable for better stability.

How long is the extension cable?

It is 30cm long, compared with the roughly 10cm adapter that comes with many cards. That gives you room to route it behind the motherboard tray.

What wire gauge does it use?

It uses 16AWG tinned copper wire with tinned copper-alloy terminals. That is thicker than the standard 18AWG wire and resists oxidation.

Key Features

  • 【Notice before shopping】To order a correct 16pin(12+4) 12VHPWR adapter cable extension for your PSU and GPU, we recommend you had better confirm the RTX 5070 / 5070Ti / 4090 / 4080 / 4070ti / 3090ti GPU's requirement of the output wattage of PSU. If it is not suitable for your power supply or you are not sure what to choose, please feel at ease to connect with us. Don't plug and unplug by force
  • 【RTX 5070Ti 5070 4090 4080 4070ti 3090ti】Fasgear PCIe 5.1 16pin (12+4) male to 2x8 pin female sleeved extension 12v-2x6 GPU cable is made for GeForce RTX 5070, 5070 ti, 4090, 4080, 4070 ti, 4070 (only for 16pin interface), 3090 ti GPU. That means, this cable can extend the length and work well with the original power cable to get stable and reliable performance. 【NOTE】 This GPU sleeved extender cable is not compatible with the GPU with 12pin or 8pin power connector, such as GeForce RTX 3090 and 8pin RTX 4070 GPU
  • 【Up to 600W Output】Fasgear 12v-2x6 PSU adapter extension cable supports up to 600W output. The plug terminals of the graphics card cable are made of alloy copper and tinned material, which can bring stable and higher currents. NOTE: This extension cable requires 2 unoccupied 8-pin PCI-e ports on your power supply to properly function. Connecting fewer than two connectors to your power supply may cause system damage. For RTX 5080, 5090 series, it is recommended to use 3x8 pin or 4x8pin for higher stability
  • 【Neat and Tidy】Fasgear 30cm 16pin gpu cable to 2 x 8 pin GPU riser extension cable, compared with the original 10cm power cable, can make your DIY computer system neat and tidy. With 4 transparent cable comb acrylic clips, it is convenient for you to manage this sleeved extension cable cord. Thus, this extension cable can make the appearance of the computer system more beautiful
  • 【16AWG Tinned Copper Wire】Fasgear PCI-e 5.1 extension 12vhpwr cable contains 16AWG tinned copper wire. Compared with the standard 18AWG power cord, this updated 16AWG tinned copper wire can bring stable voltage transmission and higher power output. Meanwhile, this tinned copper can prevent oxidation. As for the 12+4pin connector, 2 of 4 pins are connected with power wires while another 2 pins are GND wires.

Full Specifications

Size11.81 inches
BrandFasgear
ColorBlack
ModelFG-16PF03
Warranty18-Month worry-free warranty
UnitCount1
ManufacturerDongguanshi Cunpin lndustrial Co.,Ltd
ItemPartNumberFG-16P-2X8P(6+2)-523

Ready to buy?

Fasgear 16 Pin GPU Cable Adapter Extension Cable, Black 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 — $21.49

*Price sourced from Amazon.com. Last updated 2026-10-21. Price and availability subject to change.

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