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ddHiFi

ddHIFI TC28Max USB OTG Adapter with PD Input

ddHIFI TC28Max USB OTG Adapter with PD Input

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Specification

DDHIFI TC28Max USB-C OTG Adapter with PD Input

Power Upgrade: Supports up to 60W PD fast charging, enabling simultaneous charging and high-resolution audio playback without interruption.

Designed to Solve Power & Playback Limitations

The TC28Max is designed specifically for mobile Hi-Fi users who rely on USB DAC/amps. Traditional OTG connections occupy the smartphone’s USB-C port, preventing charging and leading to battery anxiety during extended listening sessions.

TC28Max eliminates this limitation by introducing high-power PD charging alongside stable OTG audio output, ensuring uninterrupted playback even during long-term use.

60W PD Fast Charging Support

Compared to earlier generations limited to 10W charging, TC28Max supports up to 60W PD fast charging, keeping your smartphone powered while driving USB DAC/amps at full performance.

Dual-Way Stable Power Supply

TC28Max enables your smartphone, DAC/amp, and audio system to operate together seamlessly. With stable voltage and current delivery, decoding chips and op-amps inside your DAC perform at optimal efficiency.

The result is cleaner dynamics, reduced distortion, and improved overall sound quality compared to phone-powered setups.

Aerospace-Grade CNC Aluminum Housing

Built for durability and daily portability, TC28Max features a compact chassis crafted from CNC-machined aluminum alloy.

The screw-free snap-fit top and bottom covers create a lightweight yet rigid structure, delivering both premium feel and long-term reliability.

Compact Size, Robust Internal Architecture

Despite its small footprint, TC28Max integrates a highly sophisticated internal design:

  • USB PD 3.1 support with triple 6-channel DRP USB-C & PD communication modules
  • AOS MOS power-switching system supporting up to 10A current
  • 4-layer immersion-gold PCB for superior anti-interference stability
  • USB-C female port rated for 10,000 insertion cycles

Comprehensive Protection System

TC28Max incorporates multiple safety mechanisms to ensure stable and secure operation:

  • Reference-voltage control
  • Over-temperature protection
  • Current limiting
  • Short-circuit protection

These safeguards ensure reliable performance for any portable Hi-Fi setup.

Specifications

  • Model: TC28Max
  • Plug Type: USB-C
  • Max Charging Power: 60W (Charging End)
  • Supported Devices: USB Audio Decoding Devices (OTG End)
  • Dimensions: 23.8 × 17 × 9.5 mm
  • Weight: Approx. 7.8 g

 


What's in the Box?

Shipping & Returns

  • Free Standard full searchable Shipping
  • DDP(Delivered Duty Paid) Services, No payment on receiption
  • Free 7-Day Return Policy!

Shipping Fees

Worldwide Free Shipping on Hificat, Please allow 1-3 business days for conduct Quality Control in order to ensure the products quality.

In the event that a shipment is refused delivery by the recipient, is undeliverable, or is returned to sender, Hificat will process a refund to the original payment method used.

If a customer would like the order reshipped, they’ll be charged a reshipment fee. Customers may also be subject to a restocking fee of up to 20 percent of the product cost.

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Which Couriers To Use?

We collaborate with these courier companies:
Standard Shipping: Yanwen Express
Express Shipping(over $500 can be free): DHL Express, FedEx and SF Express

Hificat has extensive global logistics experience to ensure quality logistics services to consumers.

HiFiCat offers consumers different shipping, depending on the country, a choice of different shipping methods.

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Estimated Delivery Time


1. France, Germany, UK, Italy, Spain, USA.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 6-10 days to arrive.

Tracking Example

France: https://t.17track.net/en#nums=YT2132021222003141

Germany: https://t.17track.net/en#nums=YT2133621222016083

United Kingdom: https://www.17track.net/?nums=GV779664269GB

Italy:https://t.17track.net/en#nums=YT2133021222011717

Spain:https://t.17track.net/en#nums=YT2129521222003430

United States:https://t.17track.net/en#nums=SUA211205BIUQ1000007

2.EU Country:Filand, Poland, Estonia, Norway, Switzerland, Greece, Sweden, Israel, Czech Republic, Slovenia, Slovakia, Denmark, Netherlands, Latvia, Croatia, Austria, Hungary, Belgium, Bulgaria, Romania, Ireland, Malta, Iceland, Serbia and so on.

All taxes and duties are prepaid to the carrier by HiFiCat prior to shipping, so there are no taxes or duties to pay when you receive it. 10-15 days to arrive.

Filand: https://www.17track.net/?nums=UG324191515YP

Poland:  https://www.17track.net/?nums=UG335827360YP

Estonia: https://www.17track.net/?nums=UG363043181YP

Norway: https://www.17track.net/?nums=VR457380806YP

Switzerland: https://www.17track.net/?nums=UG359525911YP

Greece: https://www.17track.net/?nums=UG250851788YP

Sweden: https://www.17track.net/?nums=UG353458343YP

Israel: https://www.17track.net/?nums=UG356134837YP

Czech Republic: https://www.17track.net/?nums=UG320437102YP

Slovenia: https://www.17track.net/?nums=UG349882511YP

Slovakia: https://www.17track.net/?nums=UG349946557YP

Denmark: https://www.17track.net/?nums=UG272480001YP

Netherlands: https://www.17track.net/?nums=UG206078468YP

Latvia: https://www.17track.net/?nums=UG336264373YP

Croatia: https://www.17track.net/?nums=UG331204789YP

Austria: https://www.17track.net/?nums=UG322443180YP

Hungary: https://www.17track.net/?nums=UG313846849YP

Belgium: https://www.17track.net/?nums=UG313858025YP

Bulgaria: https://www.17track.net/?nums=UG309182635YP

Romania: https://www.17track.net/?nums=UG295530616YP

Ireland: https://www.17track.net/?nums=UG286654665YP

Malta:  

Iceland: https://www.17track.net/?nums=VR447888050YP

Serbia: https://www.17track.net/?nums=VR447710777YP

 

Ukraine: https://www.17track.net/?nums=UG331240667YP 

Russian Federationhttps://www.17track.net/?nums=VR454415418YP

3.South America:Peru, Brazil, Chile

Chile: https://www.17track.net/?nums=UG205949999YP

Brazil: https://www.17track.net/?nums=UG207476109YP

South Africa: https://www.17track.net/?nums=VR446175857YP

4.Oceania:

New Zealand: https://www.17track.net/?nums=YE175499582CN
 Australiahttps://www.17track.net/?nums=UG245685796YP

 

5.Canada By Canada Post, about 2 weeks.
6. Asia:
India: https://www.17track.net/?nums=UG297660021YP
Vietnam: https://www.17track.net/?nums=VR456508418YP 
Japan By Japan Sagawa Global Transportation. About 7 days.
Thailand By jt express. About 5-7days.
Malaysia by jtexpress.My  About 5-7days.
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