Why do sound cards for PCs have three irregular pin slots in them to fit into a PCI or PCI express slot? How do you connect (Windows 10)? - Quora
![USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ... USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...](https://i5.walmartimages.com/asr/d1c59904-2f79-4d1b-ba27-966f2c1c8a0d.d887c3a34c8d0054da91058bdbe544ac.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...
![Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket](https://ae01.alicdn.com/kf/H427fffbe96b444be9e8c26b077574036W/Sound-Card-Tray-Live-Microphone-Plastic-Stand-Threaded-Clamp-Clip-Fit-for-Tripod-Bracket-Accessories-Mobile.jpg)
Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket
![USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ... USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...](https://i5.walmartimages.com/asr/102f8afe-489c-49f3-9b12-b6b56e8898f3.422196b19c49545de8c18f23d0554e03.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...
![Amazon.com: Mi/ni USB Sound Card Audio Card USB to 3.5mm Femal External Sound Card with Mic Headset Adapter Fit Compatible Speak/er Lap/top PC P-S/4 (Color : VAB-S13) : Electronics Amazon.com: Mi/ni USB Sound Card Audio Card USB to 3.5mm Femal External Sound Card with Mic Headset Adapter Fit Compatible Speak/er Lap/top PC P-S/4 (Color : VAB-S13) : Electronics](https://m.media-amazon.com/images/I/51KLtRymi8L.jpg)
Amazon.com: Mi/ni USB Sound Card Audio Card USB to 3.5mm Femal External Sound Card with Mic Headset Adapter Fit Compatible Speak/er Lap/top PC P-S/4 (Color : VAB-S13) : Electronics
![Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket](https://ae01.alicdn.com/kf/H78fd7232604c4b55824bb3cdd52ad13cU/Sound-Card-Tray-Live-Microphone-Plastic-Stand-Threaded-Clamp-Clip-Fit-for-Tripod-Bracket-Accessories-Mobile.jpg)
Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket
![USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ... USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...](https://i5.walmartimages.com/seo/USB-Audio-Adapter-EEEkit-3-5mm-Microphone-Headphone-Jack-Adapter-7-1-External-Sound-Card-Converter-Fit-Desktop-PC-Laptop-Black_ed02a3d9-b875-4085-bd09-a7a49d351eb7.6beed1f113b3ec0cd26426fd63f02719.jpeg)
USB Audio Adapter, EEEkit USB to 3.5mm Microphone Headphone Jack Audio Adapter 7.1 External USB Sound Card Adapter Converter Fit for Desktop PC ...
![Pcie Sound Card Fit for ASUS XONAR DG PCI 5.1 Sound Card No PCI-E Pcie Support Win10 : Amazon.ca: Electronics Pcie Sound Card Fit for ASUS XONAR DG PCI 5.1 Sound Card No PCI-E Pcie Support Win10 : Amazon.ca: Electronics](https://m.media-amazon.com/images/I/51nllnxxhpL.jpg)
Pcie Sound Card Fit for ASUS XONAR DG PCI 5.1 Sound Card No PCI-E Pcie Support Win10 : Amazon.ca: Electronics
Why do sound cards for PCs have three irregular pin slots in them to fit into a PCI or PCI express slot? How do you connect (Windows 10)? - Quora
![Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket](https://ae01.alicdn.com/kf/H7dca5bb1df8745358a5dcce4afcc5156J/Sound-Card-Tray-Live-Microphone-Plastic-Stand-Threaded-Clamp-Clip-Fit-for-Tripod-Bracket-Accessories-Mobile.jpg)
Sound Card Tray Live Microphone Plastic Stand Threaded Clamp Clip Fit for Tripod Bracket Accessories Mobile Phone Bracket
![Amazon.com: StarTech.com 7.1 Channel Sound Card - PCI Express - 24-bit - 192KHz - SPDIF Digital Optical and 3.5mm Analog Audio (PEXSOUND7CH) : Electronics Amazon.com: StarTech.com 7.1 Channel Sound Card - PCI Express - 24-bit - 192KHz - SPDIF Digital Optical and 3.5mm Analog Audio (PEXSOUND7CH) : Electronics](https://m.media-amazon.com/images/I/81EuaGNVTSL.jpg)
Amazon.com: StarTech.com 7.1 Channel Sound Card - PCI Express - 24-bit - 192KHz - SPDIF Digital Optical and 3.5mm Analog Audio (PEXSOUND7CH) : Electronics
![V9 Live Broadcast Sound Card, External Stereo Audio Mixer Broadcast Voice Changer Metal Frosted Body Fit for Computer Games/Mobile Phones/Live ... V9 Live Broadcast Sound Card, External Stereo Audio Mixer Broadcast Voice Changer Metal Frosted Body Fit for Computer Games/Mobile Phones/Live ...](https://images-na.ssl-images-amazon.com/images/I/71FUWTvcK4S._AC_UL210_SR210,210_.jpg)
V9 Live Broadcast Sound Card, External Stereo Audio Mixer Broadcast Voice Changer Metal Frosted Body Fit for Computer Games/Mobile Phones/Live ...
![Universal Sound Card Tray Live Broadcast Microphone Tripod-tray Rack Stand Phone Clip Holder Fit for Live Tripod Bracket Universal Sound Card Tray Live Broadcast Microphone Tripod-tray Rack Stand Phone Clip Holder Fit for Live Tripod Bracket](https://ae01.alicdn.com/kf/Sa2e2d5bff6594d0eb6adb2ee194b7329V/Universal-Sound-Card-Tray-Live-Broadcast-Microphone-Tripod-tray-Rack-Stand-Phone-Clip-Holder-Fit-for.jpg)
Universal Sound Card Tray Live Broadcast Microphone Tripod-tray Rack Stand Phone Clip Holder Fit for Live Tripod Bracket
![Amazon.com: USB Sound Card Audio Interface External Jack 3.5mm Mic Spea/ker Audio Adapter Fit Compatible Lap/top P-S/4 PC Headset Audio Sound Card (Color : Black 0.5M) : Electronics Amazon.com: USB Sound Card Audio Interface External Jack 3.5mm Mic Spea/ker Audio Adapter Fit Compatible Lap/top P-S/4 PC Headset Audio Sound Card (Color : Black 0.5M) : Electronics](https://m.media-amazon.com/images/I/51oeSsTcSbL.jpg)
Amazon.com: USB Sound Card Audio Interface External Jack 3.5mm Mic Spea/ker Audio Adapter Fit Compatible Lap/top P-S/4 PC Headset Audio Sound Card (Color : Black 0.5M) : Electronics
![Amazon.com: Mi/ni USB Sound Card Audio Card USB to 3.5mm Femal External Sound Card with Mic Headset Adapter Fit Compatible Speak/er Lap/top PC P-S/4 (Color : CDKHB) : Electronics Amazon.com: Mi/ni USB Sound Card Audio Card USB to 3.5mm Femal External Sound Card with Mic Headset Adapter Fit Compatible Speak/er Lap/top PC P-S/4 (Color : CDKHB) : Electronics](https://m.media-amazon.com/images/I/61ENOGNmVdL._AC_UF350,350_QL80_.jpg)