The PCIEX68ADAP PCI Express 6 pin to 8 pin power adapter cable lets you connect a standard 6-pin PCI Express power connection provided by the computer power supply to ATI and NVidia video cards that require an 8 pin power connection.

I did put both in a Sapphire card that takes 8 + 6 pin where the 6 pin is described as optional and the card will work with just the 8 pin so I’m not sure if this has any benefit. The PCIEX68ADAP PCI Express 6 pin to 8 pin power adapter cable lets you connect a standard 6-pin PCI Express power connection provided by the computer power supply to ATI and NVidia video cards that require an 8 pin power connection. Find many great new & used options and get the best deals for PCI-E 6-pin to 2x 6+2-pin (6-pin/8-pin) Power Splitter Cable PCIE PCI Express at the best online prices at eBay!
Since there are 3 yellow leads carrying power on either a 6 or 8 pin cable, that works out to a max capacity of 192 x 3 = 576 watts for 18 gauge and 264 x 3 = 792 watts for 16 gauge.

The only exception to the rule is PSUs with 6+2 pins connectors. Free shipping for many products!

BattleBorn 6 Pin to 6+2 Pin PCI-E Cable - Use this cable to adapt your power supply's 6-pin pci connector into an 8-pin connector.

With this connector you will be able to use both graphics cards that use 6 or 8-pin configurations. 6pin to 2*8pin(6+2)pin for miner Molex 6 pin PCI E to 2*PCIe 8 (6+2) pin Graphics Video Card PCI-e VGA Splitter Hub Power Cable. It supports 6-pin or 8-pin graphics cards and is great for NVIDIA SLI cards (needs quad 6-pin PCI Express 2.0) or ATI CrossFire cards (requires dual 8-pin PCI Express 2.0). What i mean is i will plug the 8 pin connector with a 6+2 connector and plug the 6pin connector with only a 6pin without the +2. I typically don't run my 1080Ti's much past 200 watts, so I have plenty of headroom when using either cable type. On my Aurum 1200w there is PCI-E power connector 6+2 pin, but I noticing that 8 pin is 4 yellow and 4 black, but in 6+2 there is only 3 yellow and 5 black. So i have a cable for pcie that splits to two, 6+2 connector. The PCIEX68ADAP PCI Express 6 pin to 8 pin power adapter cable lets you connect a standard 6-pin PCI Express power connection provided by the computer power supply to ATI and NVidia video cards that require an 8 pin power connection. The 8-Pin and 6+2 Pin are the same in the since that you put the 6-Pin with the 2-Pin to make a Single 8-Pin. A single 8 pin connector will deliver the same amount of power as two 6 pin connectors, which is 150W. COMeap ATX CPU 8 Pin Male to Dual PCIe 2X 8 Pin (6+2) Male Power Adapter Cable for Corsair Modular Power Supply 24-inch+8-inch (62cm+21cm) 4.1 out of 5 stars 91 1 offer from CDN$66.52 3 ground pins, and the two outer 12v pins are used, the center 12v pin is listed as "no connection". Just connect the cable to one 6-pin PCI-Express from power supply and achieve dual 6/8-pin PCI Express 2.0 output to your latest graphic card. Compatible with all high end Video Cards including: AMD Radeon HD 7950, AMD Radeon R9 270X, AMD Radeon R9 280X, Strix Radeon R7 370, Radeon R9 295, Radeon R9 380, Radeon R9 380x, Radeon R9 390, Radeon R9 390x, Radeon HD 7870, Radeon HD 7870, Radeon R9 HD 7990, Radeon R9 …

Also, one of those extra grounds is actually a sense pin, that allows the card to detect if an 8-pin is actually plugged in. They are still same ?? 6 Pin to 8 Pin (6+2 Pin) PCI-E PCI Express Braided Cable Cord Adapter. The technical spec difference is actually 2 more ground pins(one used as a sense pin) and an extra +12v pin. There were PSUs that used all 6 pins in their 6-pin connectors, but it wasn't a guarantee, especially on early PSUs that had 6-pin connectors.
Does this mean i can power up the gpu using only a single cable? I’m wondering if the combo 8 + 6 pin connectors are meant to be used either-or or both? 6 Pin to Dual PCIe 8 Pin 6+2 Graphics Card PCI Express Power Adapter GPU VGA YSplitter Extension Cable Mining Video Card Power Cable 9 inches 2 Pack Model #: comp-B07C35YR6V Item #: 9SIAMTFBMM1801 CABLE-YPCIE628 converts 6-pin PCI-Express to dual 8(6+2) pin PCI Express 2.0.

The units that have those both the 6 pin and 8 pin combinations are rated up to 150 watts.

I am testing this card at the moment by running various benchmarks and configuring it for After effects and 3dsmax. 24 inch 16AWG 6 Pin Male to 8 Pin (6+2) Male PCIE Power Cable for GPU Video Card ETH Ethereum mining. Limited time offer, ends 06/27 Necroing this thread... ExtremeGrandpa said: Good catch Vegan You are correct the mobo provides up to 75 watts through the PCIE lanes, a 6 pin PCIE plug is rated up to 75 watts, and an 8 pin PCIE is rated up to 150 watts. Here is the pin-out chart: They only reason they have them is because some Graphics Cards only have 6-Pin Connectors one or two and some have one 8 and one 6. It supports 6-pin or 8-pin graphic cards and is great for NVIDIA SLI cards (requires quad 6-pin PCI Express 2.0) or ATI CrossFire cards (requires dual 8-pin PCI Express 2.0).

With my supernova 850W G2 I got 2 x 8(6+2) pin PCIE and 2 x 8(6+2) + 6 pin PCIE cables. Re: EVGA Gtx 770 - Question on 6-pin and 8-pin PCI-e connectors 2014/03/22 01:02:18 The thermaltake PSU with 48 amps on the 12 V rails installed just fine with a included two 6+2 pin connectors. In my VGA there are 2 connectors: 8pin and 6pin. The 6-pin, according to the official spec, only uses 5 of the 6 pins.

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