4 Pin Micro Usb
Overview
Product sourcing insights & recommendations
The phrase "4 pin micro usb" refers to a simplified implementation of the standard 5-pin Micro USB connector. While the physical shell remains the same, the 4th pin (ID pin) is omitted or not wired, as it is only required for USB On-The-Go (OTG) role-switching.
Technical Breakdown & Core Differences
* The 5-Pin Standard: Uses Pins 1 (VCC), 2 (D-), 3 (D+), 4 (ID), and 5 (GND). Pin 4 allows a device to detect if it should act as a host or peripheral Components101Monoprice.
* The 4-Pin Variant: Omits Pin 4. This is functionally identical to a standard USB Type-A connector (which also uses only 4 pins) and is used when host-mode functionality is unnecessary PinoutguidePcbasic.
* Market Existence: It exists primarily for cost optimization (removing redundant wiring) and internal hardware adaptation, such as bridging Micro USB peripherals to 4-pin motherboard headers CrystalfontzCrystalfontz.
Market Trends & Insights
* Sustained Legacy Demand: While USB-C is growing at a 24.8% CAGR, Micro USB maintains a 5.6% steady growth in specific segments like IoT, legacy industrial systems, and low-cost consumer electronics AlibabaKonnra.
* DIY & Industrial Dominance: There is high B2B activity for 4-pin pigtail (bare wire) cables used for repair and custom DIY charging solutions, with prices as low as $0.30 per unit AlibabaAlibaba.
* Motherboard Integration: A niche but stable market exists for 4-pin 2.0mm pitch adapters that allow internal PC displays or controllers to interface directly with motherboards CrystalfontzAlibaba.
* Consumer Activity: Amazon search volume remains high for standard Micro USB cables (over 2,500+ monthly searches for "usb a to micro usb"), indicating that many consumers still rely on these connectors for charging legacy devices like PS4 controllers and older smartphones Amazon.
Detailed sourcing lists for bare wire pigtails, motherboard header cables, and bare connectors are available in the attached files.
Based on the technical specs and market data, you can continue with:
Micro Usb 4 Pin Male Female Connector For Point Of Sale Pos System
Products · 3 lists

4-Pin SMD Micro USB Female Connector a B Type USB Connector
Shenzhen Hongsheng Electronics Technology Co., Ltd.verified🇨🇳CN4 yrs
2Pin 4Pin Micro USB / Type C Charger Connector USB 2.0 Type A Male Female Power Plug Supply Extension Cable Wire DIY Data Line
Mirui Technology (shenzhen) Co., Ltd.🇨🇳CN6 yrs
2Pin 4Pin Micro USB / Type C Charger Connector USB 2.0 Type A Male Female Power Supply Extension Cable Wire DIY Data Line
Shenzhen Forever Electronic Technology Co., Ltd.🇨🇳CN7 yrs
2P 4P 5P 6P 12P 16P 24P Vertical Right Angle Smt Dip Male Female Usb 2.0 3.0 Pin de carga USB A Type C Micro Usb Connector

Female 5 6 Pin 4 Pin Micro USB Charging Port Connector Adapter Curved Pin Cable Multi Test Connectors Multi USB A Male Connector
Shenzhen RSW Technology Co., Ltd.🇨🇳CN5 yrs
V8 Case Type Micro USB 2.0 Connector Usb Male Vertical Jack Micro Usb 4 Pin Male PCB Connector for Cellphone
Shenzhen Weifei Electronics Co., Ltd.🇨🇳CN6 yrs
Type a 2.0 Series Usb Connector Micro Usb Female Jack Plug Connector
Shenzhen Aodetong Technology Co., Ltd.🇨🇳CN7 yrs
2P 4P 5P 6P 12P 16P 24P Vertical Right Angle Smt Dip Male Female Usb 2.0 3.0 Pin de carga USB A Type C Micro Usb Connector
Shenzhen Nordson Electronics Co., Ltd.🇨🇳CN1 yr
TEJIATE Female Micro Male USB Socket Connector SMT 2.0 6 4 Pin Accessories Parts 5 Pin Double Layer USB Connector
Shenzhen Tejiate Technology Co., Ltd.🇨🇳CN4 yrs
4 Pin SMD Micro USB Female Connector USB B Type Connector manufacturer
Dongguan Lanbo Electronics Technology Co., Ltd.🇨🇳CN11 yrs
4 1 White Black Micro USB 5PIN Welding Type Male Plug Connectors 5P USB Tail Charging Socket for Charging Other Connectors for
Shenzhen Aishajia Electronic Technology Co., Ltd.🇨🇳CN7 yrs
USB Type C Micro 4 Pin Connector Cheap Price V8 Jack Charging Port Male Connector
Shenzhen Usbrr Precision Hardware Electronics Co., Ltd.🇨🇳CN3 yrs
Factory V8 4Pin Triple Lock Micro USB Male Connector Jack Soldering for USB Cable Kit
Shenzhen Dayu Precision Industry Co., Ltd.🇨🇳CN9 yrs
Male Connector Special Design and Make Micro Usb 4 Pin Audio & Video European Standard 0.001mm CN;
Kunshan Feiya Precision Moulding Co., Ltd.🇨🇳CN12 yrs
Wholesale Mini USB Micro 4-Pin Male Connector Jacks PCB Application USB Data Charging Transfer Socket Plug
Dongguan Dajiang Electronics Co., Ltd.verified🇨🇳CN17 yrs
Micro 5 Pin USB Plug Male Surface Mount 4 Cores Micro Connector for Cable
Shenzhen Shouhan Technology Co., Ltd.verified🇨🇳CN9 yrs
Micro Male Plug With PCB Solder Plate Double-sided Micro 5P Plug Usb Connector+ Type a 3A 4PIN Male USB DIY OTG Data Charge DIY
Jiuli Xingxin Technology (Shenzhen) Co., Ltd.🇨🇳CN1 yr
4 PIN Female Micro Usb Connector UBAS-4R-D14D-4D(LF) Usb Type-a Connector Stainless Steel case Female Charging Port Connector

High Quality Micro D C Type With a Diy Iphone Male Pcb Mounted for Test Usb Connector
Shenzhen Qiweiyuan Electronics Co., Ltd.verified🇨🇳CN10 yrs
Factory High Quality 5Pin 4Pin Male Micro USB Connector
Dongguan Gongjian Electronics Technology Co., Ltd.🇨🇳CN7 yrs
Micro Usb Reverse Connector Panel Original Pcb Micro Usb 4pin Male Smt Connector
Shenzhen Newourconn Technology Co., Ltd.🇨🇳CN8 yrs
5Pin 4Pin Male Micro USB Connector Copper MicroUSB Plug Mini USB Male MICRO 5P Welded Wire with Shell Plug-in Interface
Dongguan Ws Electronic Technology Co., Ltd.🇨🇳CN9 yrs
2/5/10PCS 2P Micro USB Male Female Type-C USB Welding Wire Connector Straight for Mobile Phone Charging Port Charging Socket
Shenzhen Qinli Electronic Technology Co., Ltd.🇨🇳CN5 yrs
JHW USB 4-Pin Female Micro USB 2.0 Connector for Audio & Video Applications
Dongguan Jinhongwei Cable Co., Ltd.🇨🇳CN2 yrs
2/5/10PCS 2P Micro USB Male Female Type-C USB Welding Wire Connector Straight for Mobile Phone Charging Port Charging Socket
Shenzhen Xinlifa Electronics Co., Ltd.🇨🇳CN4 yrs
6mm 8mm Micro USB Welding Type Male Plug 5 Pin Connectors 4 in 1 DIY Plugs USB Tail Charging Socket Black White
Shenzhen Wengo Electronic Technology Co., Ltd.🇨🇳CN14 yrs
BTRE TPC Micro USB 3.0 V8 Male Connector Data Cables 5/8/10 Pin Dual Row Reversible Plug 6+4 Pin Short Model
Shenzhen Baitengrui Electronic Co., Ltd.🇨🇳CN2 yrs
L=14mm Vertical Mount Micro USB Female 2 Pin MINI USB Connector
Shenzhen Keyongbang Electronic Co., Ltd.🇨🇳CN4 yrs
DIY Micro USB 2.0 A Type Male Connector 4 in 1 DIY USB Connector with Plastic Shell
Dongguan Bestcreate Electronics Technology Co., Ltd.🇨🇳CN6 yrsRelated Searches
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Sources & References
26 sources cited · Verified industry data & reports
Micro B USB Jack Pinout, Specifications, Connections & Datasheet
components101.com
The micro USB jack finds its applications in many embedded projects where serial communication or power supply is required. It can be commonly found on Mobiles phones as charging/communication ports. Similarly it is used for the same purpose on raspberry pi, ESP modules and much more. These sockets have 5 pins, out which is two is used for power supply and other two is used for data communication. The micro USB Jack has five pins through which the power and data is transferred, the 4th pin ID is used for mode detection, this indicates if the USB is used only for power or for data transfer. Of the remaining four pins two pins (pin 1 and Pin 5) are used to provide the Vcc and Ground. The ground pin is connected to the ground of microcontroller. The remaining two pins are the D+ and the D-. These pins should be connected to the D+ and D- pins of the host respectively. They also require a pull-down resistor of value 15K each for the data to transfer. A sample connection set-up is shown below. ... Optimized with highly sensitive cap touch sensors, extensive peripheral circuits and 125℃ operation ... 1.5kW programmable power supply offers 12V-400V outputs, high efficiency, multiple digital protocols The micro USB connector can be used to power or communicate with devices. The maximum current that can be handled by this connector is 1A. However it is recommended not use loads more than 500mA for USB connectors as per USB consortium.
Micro USB to 4-Pin Cable from Crystalfontz
www.crystalfontz.com
Need a cable for newer motherboards with smaller headers? See our Micro USB cable with 2mm pitch 4-pin connector. ... Pricing is subject to change. ... Download LCD Drivers & utilities for our hardware. Get information and support from our user community. ... Newest products! The Micro USB connector (not to be confused with the older, larger Mini USB) provides a compact, reliable connection standard found on many peripheral devices, mobile phones, and embedded display modules. Use this cable for data communication, firmware updates, or charging compatible devices via your motherboard's internal USB pins. This USB 2.0 Micro USB to 4-pin adapter cable connects Micro USB devices to motherboard USB headers with 0.100" (2.54mm) pitch connectors.
USB pinout diagram @ pinouts.ru
pinoutguide.com
The original USB specification detailed Standard-A and Standard-B plugs and receptacles. Nowdays there are 7 USB connectors known: Standard-A, Standard-B, Mini-A, Mini-B , Micro-A, Micro-AB, Micro-B, Type-C. Mini-USB pinout and Micro-USB pinout are slightly different: standard USB uses 4 pins while Mini-USB and Micro-USB uses 5 pins in connector. Normal operational voltage for functions is minimum 4.75 V. Shield should only be connected to Ground at the host. No device should connect Shield to Ground. Shielded: Data: 28 AWG twisted Power: 28 AWG - 20 AWG non-twisted · Non-shielded: Data: 28 AWG non-twisted Power: 28 AWG - 20 AWG non-twisted ... According to 244 reports in our database (216 positive and 14 negative) the USB pinout should be correct. USB 1.0 and USB 2.0 shares same connector pinout, USB 3.0 pinout and USB Type C features new connectors with their own pinouts. An USB device must indicate its speed by pulling either the D+ or D- line high to 3.3 volts. These pull up resistors at the device end will also be used by the host or hub to detect the presence of a device connected to its port. Without a pull up resistor, USB assumes there is nothing connected to the bus. In order to help user to identify maximum speed of device, a USB device often specifies its speed on its cover with one of the USB special marketing logos. If you did publish instruction for Do-It-Yourself device with this pinout, share the link with us. ... Source(s) of this and additional information: USB Specification v1.0 at USB Implementers Forum, "USB in a Nutshell"
USB hardware - Wikipedia
en.wikipedia.org
PoweredUSB is a proprietary extension, from long before USB Power Delivery, that adds four pins supplying up to 6 A at 5 V, 12 V, or 24 V. It is commonly used in point-of-sale systems to power peripherals such as barcode readers, credit card terminals, and printers. ... 1 2 3 Universal Serial Bus Specification (Technical report) (Revision 2.0 ed.). USB-IF. 2000-04-27. 6.4.4 Prohibited Cable Assemblies. "USB Type-C Connector Specifications Finalized". AnandTech. Archived from the original on 2017-03-18. Retrieved 2017-04-24. ↑ Oji, Obi (January 2024). "ESD and Surge Protection for USB Interfaces – Application Note" (PDF). Texas Instruments. ↑ "USB Pinout". UsbPinout.net. Archived from the original on 2014-06-17. ↑ "USB Port Colors Explained". corsair.com. 2025-02-04. Retrieved 2025-11-26. 1 2 3 4 5 6 7 8 9 "Universal Serial Bus Micro-USB Cables and Connectors Specification". ↑ "FRONTX - Mother-board USB Pin Assignment - USB Header (pinout) Connection Guide". www.frontx.com. ↑ "USB 3.0 INTERNAL CONNECTOR AND CABLE SPECIFICATION" (PDF). 1 2 3 4 "USB 3.1 FRONT-PANEL INTERNAL CONNECTOR AND CABLE, REVISION 1.1" (PDF). 2017. ↑ "USB4 Cable Electricals and System Design" (PDF). ↑ "SSZT427 Technical article | TI.com". The USB 3.0 standard does not directly specify a maximum cable length, requiring only that all cables meet an electrical specification: for copper cabling with AWG 26 wires the maximum practical length is 3 metres (9 ft 10 in). For USB 3.x cables, the D± signals are usually shielded. Downstream USB connectors supply power at a nominal 5 V DC via the V_BUS pin to upstream USB devices. The tolerance on V_BUS at an upstream (or host) connector was originally ±5% (i.e. could lie anywhere in the range 4.75 V to 5.25 V). The GSM Association (GSMA) followed suit on February 17, 2009, and on April 22, 2009, this was further endorsed by the CTIA – The Wireless Association, with the International Telecommunication Union (ITU) announcing on October 22, 2009, that it had also embraced the Universal Charging Solution as its "energy-efficient one-charger-fits-all new mobile phone solution", and added: "Based on the Micro-USB interface, UCS chargers will also include a 4-star or higher efficiency rating—up to three times more energy-efficient than an unrated charger." In June 2009, the European Commission organized a voluntary Memorandum of Understanding (MoU) to adopt micro-USB as a common standard for charging smartphones marketed in the European Union. The specification was called the common external power supply.
USB Pinout: Type-A, Type-B, USB-C and Micro
www.wellpcb.com
In this specification, a service known as the Host Negotiation Protocol (HNP) establishes the roles of the connected devices – mainly OTG-A and OTG-B. OTG-A refers to the master while OTG-B is the slave/to-device. This configuration requires a specialized pinout to work – the USB OTG pinout. USB OTG pinouts (Micro-AB and Mini-AB) differ from standard USB pinouts in that they have an additional pin known as the ID pin (Pin 4). We’ll be able to achieve even greater speeds through the USB 3.2 and Thunderbolt3 specifications. The USB-C type connector and standard are extremely versatile. You can find it in: ... The Type-C USB has 24 pins which you can connect reversibly. Here’s a table showing the full list of pins: A smaller connector became necessary as more devices required smaller USB sizes. Typical type A or B USB connectors simply could not accommodate modern mobile phones and audio devices. Thus, the micro USB was born. Contact WellPCB today for expert advice on USB pinouts, connector types, and PCB assembly services. ... Hi, I’m Hommer Zhao, the founder and Chief Editor at WellPCB. With extensive experience in the PCB industry, I oversee all content to ensure it meets the highest standards of accuracy and insight. We proudly serve over 4,000 customers globally. Note: all generations of the Type-A USB connector have pins 1 to 4, while third-generation connectors have pins 5-9.
4-pin 2mm Pitch Micro USB Cable from Crystalfontz
www.crystalfontz.com
This 700mm long, micro USB connector to 4-pin 2 millimeter pitch connector can connect a micro USB device to the USB pins on a motherboard. Note that this cable is for the tighter 2.0 mm spacing on some newer motherboards. Check out the WR-USB-Y34 for a 2.54 mm (0.1") pitch cable. Compatible With: CFA039A0NVD Series ... Pricing is subject to change. ... Download LCD Drivers & utilities for our hardware. Get information and support from our user community. ... Newest products!
