Product Comparison
| Item | Product 1 | Product 2 | Product 3 |
| Structure | Square Flange Female toMale | Round Panel Female toMale | Female to Female Feedthrough |
| USB Version | USB 2.0/ USB 3.0 | USB 2.0 / USB 3.0 | USB 2.0/ USB 3.0 |
| Color | Black/White/Yellow/Blue | Black | Black |
| Length | 8 Lengths, 0.1-4m | 8 Lengths, 0.1-4m | No Captive Cable |
| Mounting | 4-Hole Square Flange | D-Shaped Round Cutout | D-Shaped Round Cutout |
| Main Use | Rigid Panel Installation | Compact Panel Extension | Flexible Cable Selection |
Product 1:
Square Flange USB Panel Mount Extension Cable
It is a square flange waterproof USB male-to-female industrial extension cable.
The external side features a USB Type-A female receptacle secured to the equipment panel through a four-hole square flange. An internal extension cable terminates in a USB Type-A male plug, relocating the equipment's internal USB interface to an accessible external panel.
USB 2.0 and USB 3.0 versions are available in black, white, yellow, and blue for equipment appearance matching and interface color identification.
According to the supplied drawing, the square flange mounting layout uses a Ø21.00 ±0.10mm central cutout, four Ø3.20 ±0.05mm mounting holes, and a 22.00 ±0.05mm horizontal and vertical hole spacing.
Product 2:
Round USB Panel Mount Extension Cable
It is a round waterproof USB male-to-female panel mount extension cable.
The panel side uses a USB Type-A female receptacle integrated into a threaded circular housing and secured with a retaining nut. The opposite end terminates in a USB Type-A male connector.
Compared with the four-hole flange design, this version eliminates separate flange screw holes and is suitable for compact equipment panels requiring simpler machining.
It is available in black with USB 2.0 and USB 3.0 configurations.The circular portion has a diameter of Ø20.80mm, while the width across the positioning flats is 19.40mm.
Product 3:
Waterproof USB Female Feedthrough Adapter
Product 3 is an industrial waterproof USB female-to-female feedthrough adapter designed for panel or bulkhead mounting.
USB female receptacles are provided on both sides, so the product does not include a permanently attached extension cable. After installation, corresponding USB male cables can be connected independently on the external and internal sides.
This configuration is especially suitable for equipment requiring independent selection of internal and external cable lengths, easy cable replacement, or modular wiring.
The product is available in black with USB 2.0 and USB 3.0 versions.
The product uses a D-shaped panel positioning cutout.The circular portion has a diameter of Ø25.20 ±0.1mm, while the left positioning flat is located 11.00mm from the centerline.
Product Features
The series offers square four-hole flange, round nut-secured, and female-to-female bulkhead mounting designs for different equipment panels and enclosures. The square flange version is available in black, white, yellow, and blue, while the other two versions come in black, supporting flexible installation and equipment design.
All three products are available in USB 2.0 and USB 3.0 versions to meet different data transmission requirements. The square and round panel extension cables offer eight standard lengths: 0.1, 0.3, 0.5, 1, 1.5, 2, 3, and 4m, supporting internal cable routing in compact embedded devices and larger control cabinets.
Protective caps and panel sealing components help reduce the entry of dust, water droplets, and contaminants when the USB interface is not in use. The products are suitable for industrial control cabinets, outdoor equipment, and embedded systems. Actual protection depends on installation, sealing components, and operating conditions. IP67 or IP68 ratings require formal product testing.
Product Breakdown
Product Capabilities
◆ USB Data Interface Extension
Products 1 and 2 relocate internal USB interfaces to an external panel, while Product 3 provides a physical feedthrough connection between USB cables on both sides of the panel.
◆ USB 2.0 and USB 3.0 Selection
Users can select USB 2.0 or USB 3.0 according to equipment data requirements.
USB 2.0 provides up to 480Mbps theoretical data signaling, while the 5Gbps-class capability associated with USB 3.0 requires the specific product to meet the corresponding cable and connector performance requirements.
Typical Applications
◆ Three Mounting Solutions in One Product Family
The square flange version is suitable for equipment requiring multiple fixing points; the round panel version simplifies the mounting structure; and the female-to-female version supports modular cable routing.
Customers can select a connector according to the equipment's mechanical design without changing the overall USB interface ecosystem.
◆ Reduced Equipment Disassembly
By relocating internal USB connections to an external panel, maintenance personnel can connect USB flash drives, keyboards, service terminals, or compatible USB devices directly from the exterior.
This can reduce repeated enclosure opening for systems requiring periodic firmware updates or parameter configuration.
◆ Flexible Mechanical Integration
The three products use different panel cutout structures, allowing equipment designers to select a solution according to available panel area, sheet-metal machining methods, and internal space.
This is one of the most important structural differences among the three products.
USB 2.0 vs USB 3.0
| Item | USB 2.0 Version | USB 3.0 Version |
| Theoretical Signal Rate | 480Mbps | 5Gbps Level |
| Typical Application | General Peripherals, Maintenance Interface | High-speed storage, data acquisition |
| Connector | USB Type-A | USB Type-A |
Product Customization Capabilities
Premier Cable offers USB 2.0 and USB 3.0 versions, with eight standard cable lengths from 0.1m to 4m for Products 1 and 2. Cable length, construction, and connector configurations can be customized to meet equipment requirements.
Product 1 is available in black, white, yellow, and blue. Custom colors, logos, labels, and appearance options can be evaluated to meet equipment design, brand identity, and industrial installation requirements.
Premier Cable provides OEM customization and wholesale supply for industrial equipment manufacturers and system integrators. Connector configurations, packaging, and product specifications can be tailored to meet project requirements.
Products Drawing
Product FAQ
What Are the Main Differences Between the Three Products ?
The main differences among the three products are their mechanical mounting methods and rear connection structures.
Product 1 uses a four-hole square flange and includes an attached USB extension cable. Product 2 uses a D-shaped round panel cutout secured with a retaining nut and also includes an attached USB extension cable. Product 3 uses a USB female-to-female feedthrough structure without a captive cable.
Are All Three Products Available in USB 2.0 and USB 3.0 Versions ?
Yes. According to the current product information, all three products are available in USB 2.0 and USB 3.0 versions.
When selecting a version, the connector contacts, cable construction, and actual data transmission performance should be confirmed.
What Is the Difference Between USB 2.0 and USB 3.0 ?
USB 2.0 High-Speed provides a theoretical signaling rate of up to 480Mbps.
The 5Gbps capability traditionally referred to as USB 3.0 corresponds to USB 3.2 Gen 1 under the current USB-IF naming framework.
Whether an actual product can achieve the corresponding speed should be verified through testing of the cable, connectors, and complete transmission link.
Why Does Product 1 Use a Four-Hole Square Flange ?
The four-hole square flange provides multiple mechanical fixing points, helping improve mounting stability on the equipment panel.
This structure is particularly suitable for applications requiring stronger mechanical fixation or equipment that already uses a square flange panel layout.
Do You Support OEM Customization, Wholesale Supply, and Manufacturer Direct Supply ?
Yes. Premier Cable can evaluate OEM customization options including USB version, cable length, color, connector structure, mounting method, logo, labeling, and packaging according to project requirements.
This product family is suitable for industrial equipment manufacturers, automation equipment suppliers, system integrators, cable assembly buyers, and other bulk purchasing projects.
Hot Tags: Waterproof USB Panel Mount Connector, China Waterproof USB Panel Mount Connector manufacturers, suppliers, factory, ip67 waterproof cable, ip67 waterproof panel mount usb b to b cable, IP68 micro USB cable, Micro USB panel mount socket, moisture proof ip67 usb 2 0 type a to mini b cable, Waterproof USB connector
