Business volume discounts
Technical guidance
Preparation & staging
QC · ON · AB · BC
Product Features
Technical Overview
This USB-C adapter implements a 24-pin USB Type C connector system that supports both data transmission and power delivery. The adapter functions as a powered USB-C male to female pass-through with an integrated 3.5mm audio female port, creating a versatile 2-in-1 solution for modern computing environments. Power delivery capabilities include up to 60W USB Power Delivery 3.0 pass-through when using an external power adapter, sufficient for charging most USB-C laptops and tablets.
The adapter operates in multiple charging modes: it can function as a bus-powered device drawing power from the host, or utilize an external USB-C power adapter for full 60W PD pass-through. For smartphone charging, it supports Fast Charge (BC 1.2) protocols. The 3.5mm audio port is TRRS-compatible, supporting headsets with microphone functionality and delivering high-resolution audio output through integrated DAC circuitry.
Key Product Advantages
The CDP235APDM adapter delivers practical advantages for professionals working in modern USB-C environments where legacy audio connectivity remains essential. Its simultaneous charging and audio capability addresses the port limitation common on contemporary laptops and tablets, while its compact design ensures minimal desk footprint and maximum portability.
Dual-Function Design
Enables simultaneous 3.5mm headset connectivity and device charging through a single USB-C port, eliminating the need for separate adapters or hub solutions.
- TRRS audio with microphone support
- Up to 60W PD pass-through charging
- High-resolution DAC audio output
Optimized Physical Design
Features a horizontal, cable-less form factor with side-mounted ports that prevent cable entanglement and allow flexible device positioning.
- Metal construction for durability
- Discreet port placement
- Compact 2-inch length
Broad Compatibility
Works with USB-C laptops, tablets, and smartphones across multiple operating systems, including specific support for popular device families.
- Thunderbolt 3/4 host compatible
- Windows, macOS, iPadOS, iOS, Android
- iPad Pro, Google Pixel, Samsung Galaxy, iPhone 15+
Deployment / Use Cases
This adapter serves multiple professional scenarios where USB-C devices require both audio connectivity and continuous power. In office environments, it enables conference calls and customer support sessions using traditional headsets while keeping laptops charged throughout the workday. The compact design makes it ideal for hot-desking arrangements and shared workspaces where minimal cable clutter is preferred.
For mobile professionals, the adapter's small footprint allows it to remain connected during travel between office locations, home offices, and client sites. It supports business travelers who need to make voice calls or participate in video conferences from hotels or coworking spaces while maintaining device battery life. The adapter also serves educational institutions, call centers, and healthcare settings where reliable audio communication must coexist with device charging requirements.
Professional Communication
Enables clear audio for video conferences, VoIP calls, and customer support interactions using legacy headsets with built-in microphones.
Mobile Productivity
Supports business travelers and remote workers who need both audio connectivity and device charging in compact, portable setups.
Physical Profile
The adapter measures 2 inches in length, 0.90 inches in width, and 0.40 inches in height (50.80 x 22.86 x 10.16 mm), creating a minimal footprint that doesn't obstruct adjacent ports. Its silver metal construction provides durability for frequent insertion and removal cycles, while the horizontal design with side-mounted ports prevents cable strain and allows the adapter to lay flat against devices. The tangle-free, snagless design ensures reliable connections in crowded port environments typical of modern computing setups.
- Width
- 0.90" (22.86 mm)
- Height
- 0.40" (10.16 mm)
- Length
- 2" (50.80 mm)
Highlights
- Adds 3.5mm TRRS audio jack with microphone support to USB-C devices
- Provides up to 60W USB Power Delivery 3.0 pass-through charging
- Supports bus-powered operation or external power adapter use
- Compact horizontal design with side ports prevents cable tangles
- Metal construction in silver for durability and professional appearance
- Compatible with USB-C laptops, tablets, and smartphones
- Works with iPad Pro, Google Pixel, Samsung Galaxy, iPhone 15+ devices
- Supports Windows, macOS, iPadOS, iOS, and Android operating systems
- Thunderbolt 3/4 host compatible for expanded connectivity
- Backed by 3-year limited warranty and RoHS environmental compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | StarTech.com |
| Manufacturer Part Number | CDP235APDM |
| Brand Name | StarTech.com |
| Product Name | USB-C to 3.5mm Audio Adapter |
| Packaged Quantity | 1 Each |
| Product Type | Audio Adapter |
| Technical Information | |
| Adapter Type | Mini-phone/USB-C |
| Connector Type on First End | Powered USB Type C - Male |
| Connector on First End Details | 1 x 24-pin USB Type C Powered USB Male |
| Connector Type on Second End | Powered USB Type C - Female,Mini-phone Audio - Female |
| Connector on Second End Details | 1 x 24-pin USB Type C Powered USB Female,1 x Mini-phone Audio Female |
| Features | Charging,USB- Power Delivery (USB PD),Tangle-free,Snagless |
| Physical Characteristics | |
| Color Family | Silver |
| Product Color | Silver |
| Product Material | Metal |
| Height | 0.40" (10.16 mm) |
| Width | 0.90" (22.86 mm) |
| Length | 2" (50.80 mm) |
| Miscellaneous | |
| Country of Origin | Vietnam |
| Environmentally Friendly | Yes |
| Environmental Certification | EU RoHS |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS) 2,Registration, Evaluation, Authorization and Restriction of Chemicals (REACH),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What devices are compatible with this USB-C audio and charge adapter?
The adapter works with USB-C laptops, tablets, and smartphones, including specific compatibility with iPad Pro models, Google Pixel devices, Samsung Galaxy S8 and newer, iPhone 15 series (Plus/Pro/Max) and newer. It supports Windows, macOS, iPadOS, iOS, and Android operating systems, and is Thunderbolt 3/4 host compatible for expanded connectivity options with modern computing hardware.
How much power can this adapter deliver for charging devices?
When using an external USB-C power adapter, this device supports up to 60W USB Power Delivery 3.0 pass-through charging, sufficient for most USB-C laptops and tablets. For smartphone charging, it supports Fast Charge (BC 1.2) protocols. The adapter can also operate in bus-powered mode drawing power directly from the host device when external power isn't available.
Does the 3.5mm audio port support headsets with microphones?
Yes, the 3.5mm port is TRRS-compatible, supporting headsets with built-in microphones for two-way audio communication. This enables clear voice input for conference calls, customer support interactions, and voice commands while providing high-resolution DAC audio output for listening to multimedia content or system sounds.
What are the physical dimensions of this adapter?
The adapter measures 2 inches in length, 0.90 inches in width, and 0.40 inches in height (50.80 x 22.86 x 10.16 mm). This compact horizontal design with side-mounted ports minimizes desk footprint and prevents cable entanglement, making it suitable for crowded port environments and portable use cases where space is limited.
What materials is this adapter constructed from?
The adapter features metal construction in a silver finish, providing durability for frequent insertion and removal cycles. The metal housing ensures reliable performance in professional environments while maintaining a clean, professional appearance that matches modern computing accessories.
What warranty and environmental certifications does this product have?
StarTech.com provides a 3-year limited warranty for this adapter. The product is environmentally certified to EU RoHS standards and complies with Restriction of Hazardous Substances (RoHS) 2, Registration, Evaluation, Authorization and Restriction of Chemicals (REACH), and Waste Electrical and Electronic Equipment Directive (WEEE) requirements for responsible manufacturing and disposal.
What refresh rate or brightness details are available?
Display-oriented products are best judged through screen, connectivity, and installation specifications. Those facts help buyers confirm visual fit, mounting flexibility, and deployment suitability more clearly than generic summary text.
What input or connectivity options are listed?
Connectivity options include Powered USB Type C - Male, helping the product integrate into common office or home setups.