Why does micro USB 2.0 have 5 pins, when the A-type only has 4
![Why does micro USB 2.0 have 5 pins, when the A-type only has 4](https://i.stack.imgur.com/KSGN3.png)
![](https://www.newnex.com/images/usb-2-micro-b-male(UH2-MCB)_small.png)
USB Connector and Cable Type Guide
![](https://pisces.bbystatic.com/image2/BestBuy_US/images/products/5884/5884142_sa.jpg)
Insignia™ 3' USB Type A-to-5-Pin Mini-B Cable Black NS - Best Buy
![](https://i5.walmartimages.com/seo/Dual-Usb-2-0-Type-A-To-Usb-Mini-5-Pin-Type-B-X1-Y-Data-Power-Cable_050c9a5c-e555-4de5-be7f-6cb36907bf16_1.07f6738cdb5d7f7cec854cdd7ec23d2e.jpeg?odnHeight=768&odnWidth=768&odnBg=FFFFFF)
Dual USB 2.0 Type A to USB Mini 5-Pin Type B x1 Y Data & Power
![](https://www.electroschematics.com/wp-content/uploads/2010/01/usb-wiring-connection.jpg)
USB Pinout, Wiring and How It Works
![](https://ae01.alicdn.com/kf/S146fb5bb69164607aa17e418e3128259I.jpg_640x640Q90.jpg_.webp)
Micro USB 2.0 A Female Male Jack Power Supply Extension Cable 4
![](https://www.scienceabc.com/wp-content/uploads/2015/12/usb-type-c.jpg)
USB Types (A, B, C, Micro, Mini) & USB Versions Explained
Tripp Lite Heavy Duty USB-A to USB Micro-B Charging Sync Cable
![](https://cdn.sparkfun.com/assets/learn_tutorials/1/8/usb-features.jpg)
Connector Basics - SparkFun Learn
How to make a charge-only USB cable - Quora
Why has a mini USB cable 5 pins and 'normal' USB cable 4 pins? - Quora
![](https://www.cablematters.com/blog/image.axd?picture=/What-is-USB-C2.jpg)
What is USB-C?
![](https://www.cablematters.com/Blog/image.axd?picture=/USB-Connector--Cable-Types-Everything-You-Need-to-Know.jpg)
USB Connector & Cable Types: Everything You Need to Know
What if a micro USB only has 4 prongs? - Quora
![](https://cdn2.webdamdb.com/md_M6qPieq5wBC27A1F.jpg?1632156252)
What Is USB? USB, Micro and Mini USB, Connector Guide
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What Are The Types Of USB Cables And How To Identify Them? - Anker US