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6-Pin to 8-Pin Converter
The Cable Matters 6-Pin PCI to 8-pin Adapter Power Cable provides a convenient solution for powering a video graphics card from a PSU with only a 6-PIn PCIe power connection.
Instant Power in a Cost-Effective 2-Pack
Power a new video graphics card with an existing 6-pin PCIe power connection on your PSU. This convenient 2-Pack of video graphics card power cables provides a spare or replacement power cable for an upgrade or repair.
PSU Cable Connector
- Check the power rating of your PSU
- Check the distance from your PSU cable to the video graphics card port
Direct GPU Power Connection
- Plugs directly into an 8-Pin PCIe port
- Check the power requirements of your GPU
Built to run 24/7
- 4-inch wire length
- 18 AWG, UL 1007 insulated wires
- Max Power Rating: 75W
Honest Professional Reviews
2025-08-30 16:53:32
I have some HP Z-series workstations. These have beefy 1150W power supplies, but only three 6 pin power cables (no 8-pin). The 6 pin cables run over 150W per cable, though, unlike most system (in other words, they are way more powerful than the nominal spec).Anyway, modern video cards all require 6+8 or 2x8 power adapters. What to do? Well, the easy thing is to use a 6-> 8 pin adapter. Since the power supply on the HP is sending well over the 8-pin spec along that rail, it's no problem.I first tried some budget cables I got off an auction site. They look great, and the wire casings are nice and thick, but as soon as I put stress on the video card, they got VERY hot. Cutting one open reveals very thin wire. No good.So I got these Cable Matters cables. They actually aren't much more expensive than the cables they are replacing. And these work GREAT. The cables do not heat up at all, even under full stress load. Nice.I will only use these cables from now on.
King P
2025-08-22 14:11:10
I upgraded the power supply in my dell inspiron desktop to support a GPU, however the power supply only had an extra 6 pin cable, and the GPU had an 8 pin power cable. I bought these and they work perfectly!
M.M.
2025-08-19 18:46:25
My 430W power supply has only one PCIe connector and it has 6 pins. But my GTX 950 video card (I know it’s old but hey it works) has a 8 pin power connector. This little adapter made it work. I’m happy.
Ayauna
2025-08-18 12:15:28
Upgraded my GPU from a 1650 to 4060 and didn't know it was 8-pin only while my PSU only has a 6-pin. The computer didn't even recognize the GPU, I was so upset! After an embarrassingly long time looking for solutions, I figured I should just spend the $10 on an adapter cord. Got it in 2 days, plugged it in easily with no problems with the connection or quality of the wires, hooked up my monitor to the GPU and after opening my driver's and refreshing, I swear I heard the hallelujah chorus as the 4060 appeared under my drivers. I booted up FFXIV to test it and the difference was like night and day. Well worth the $10 and you get two of them!
B. K.
2025-08-13 14:44:48
Perfect for installing a video card that requires 8 pin power connectors and your PC only has 6 pins.
Carlos Stout
2025-08-06 17:22:59
I needed the adapter to upgrade my nephews PC from an RX480 to a GTX1070. I ordered these and they arrived the next day. I was a little concerned about whether this adapter would deliver the power consistently since we're not adding more rails, just splitting existing rails.Upon installing them, after a strange glitch on the initial boot, the PC started back up without any problems, seemed to work just fine. Time will tell how they hold up, I certainly wouldn't install these on a GPU I couldn't afford to replace pretty easily, but they seem to do the trick.The only things you may have an issue with are cosmetic, they're ugly, but if you're using one of these you probably weren't doing an aesthetic build anyhow.
Sam
2025-07-31 16:37:44
I was a little nervous using one of these to convert a 6 pin plug from my computer’s power supply to 8 pin, but it’s been working like a charm. (Probably helps that it’s a high quality PSU, just a little older.).
Panther
2025-07-29 12:16:40
I had doubt that it might not able to provide low resistance for the high current. However, so far it works like a champ
Bueller
2025-07-17 16:47:11
Works really well - received two of them for less than it costs for one at the local PC store. I was dubious about that; but it handles the conversion no probs.
Kunde
2025-07-07 16:20:52
Würde schnell geliefert. Es gibt nichts zu Bemängeln.
lolboer9999999
2025-06-27 20:47:22
Used it for a vega 64 in my z620 workstation and they work fine. Be carefull when using these though because regular 6 pin cables can only deliver 75 watts (same for the pcie slot) so when using 2 you shouldnt use a gpu that uses more than 75*3=225 watts
Massimo Di Quinzio
2025-06-25 11:31:14
Avendo un alimentatore con 2 connettori da 6 per adattarlo alla scheda video Radeon Rx 6600 ho dovuto acquistare questi connettori che arrivano imballati in scatola e sembrano ben fatti
AHA
2025-06-24 16:48:04
Worked as expected on my gpu that needed an 8 pin pcie.
Honest Professional Reviews
2025-06-04 15:33:13
I have some HP Z-series workstations. These have beefy 1150W power supplies, but only three 6 pin power cables (no 8-pin). The 6 pin cables run over 150W per cable, though, unlike most system (in other words, they are way more powerful than the nominal spec).Anyway, modern video cards all require 6+8 or 2x8 power adapters. What to do? Well, the easy thing is to use a 6-> 8 pin adapter. Since the power supply on the HP is sending well over the 8-pin spec along that rail, it's no problem.I first tried some budget cables I got off an auction site. They look great, and the wire casings are nice and thick, but as soon as I put stress on the video card, they got VERY hot. Cutting one open reveals very thin wire. No good.So I got these Cable Matters cables. They actually aren't much more expensive than the cables they are replacing. And these work GREAT. The cables do not heat up at all, even under full stress load. Nice.I will only use these cables from now on.
King P
2025-05-27 16:54:41
I upgraded the power supply in my dell inspiron desktop to support a GPU, however the power supply only had an extra 6 pin cable, and the GPU had an 8 pin power cable. I bought these and they work perfectly!
M.M.
2025-05-25 09:09:36
My 430W power supply has only one PCIe connector and it has 6 pins. But my GTX 950 video card (I know it’s old but hey it works) has a 8 pin power connector. This little adapter made it work. I’m happy.
Ayauna
2025-05-12 14:06:42
Upgraded my GPU from a 1650 to 4060 and didn't know it was 8-pin only while my PSU only has a 6-pin. The computer didn't even recognize the GPU, I was so upset! After an embarrassingly long time looking for solutions, I figured I should just spend the $10 on an adapter cord. Got it in 2 days, plugged it in easily with no problems with the connection or quality of the wires, hooked up my monitor to the GPU and after opening my driver's and refreshing, I swear I heard the hallelujah chorus as the 4060 appeared under my drivers. I booted up FFXIV to test it and the difference was like night and day. Well worth the $10 and you get two of them!
B. K.
2025-05-10 13:10:11
Perfect for installing a video card that requires 8 pin power connectors and your PC only has 6 pins.
Carlos Stout
2025-04-27 15:04:37
I needed the adapter to upgrade my nephews PC from an RX480 to a GTX1070. I ordered these and they arrived the next day. I was a little concerned about whether this adapter would deliver the power consistently since we're not adding more rails, just splitting existing rails.Upon installing them, after a strange glitch on the initial boot, the PC started back up without any problems, seemed to work just fine. Time will tell how they hold up, I certainly wouldn't install these on a GPU I couldn't afford to replace pretty easily, but they seem to do the trick.The only things you may have an issue with are cosmetic, they're ugly, but if you're using one of these you probably weren't doing an aesthetic build anyhow.
Sam
2025-04-11 12:39:26
I was a little nervous using one of these to convert a 6 pin plug from my computer’s power supply to 8 pin, but it’s been working like a charm. (Probably helps that it’s a high quality PSU, just a little older.).
Panther
2025-04-06 15:11:19
I had doubt that it might not able to provide low resistance for the high current. However, so far it works like a champ
Bueller
2025-03-27 17:17:48
Works really well - received two of them for less than it costs for one at the local PC store. I was dubious about that; but it handles the conversion no probs.
Kunde
2025-02-09 14:01:59
Würde schnell geliefert. Es gibt nichts zu Bemängeln.
lolboer9999999
2025-01-24 10:50:23
Used it for a vega 64 in my z620 workstation and they work fine. Be carefull when using these though because regular 6 pin cables can only deliver 75 watts (same for the pcie slot) so when using 2 you shouldnt use a gpu that uses more than 75*3=225 watts
Massimo Di Quinzio
2025-01-13 11:18:30
Avendo un alimentatore con 2 connettori da 6 per adattarlo alla scheda video Radeon Rx 6600 ho dovuto acquistare questi connettori che arrivano imballati in scatola e sembrano ben fatti
AHA
2025-01-07 11:32:06
Worked as expected on my gpu that needed an 8 pin pcie.
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