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Close Proximity Wireless Transfer Technology TransferJet™-compliant IC

Related Information

Product Briefs

TransferJet™-compliant IC image

TC35420 is a wireless IC product that supports the TransferJet™ standard for high-speed, close proximity wireless transfer technology. This IC implements TransferJet™ functions with wireless, digital-signal-processing, host-interface, and memory-interface functions in a single chip using RF-CMOS process. The TransferJet™ Consortium has defined the standard for this technology.

Third-party Software and Hardware Support

Toshiba wireless products are used by multiple third-party hardware and software suppliers to offer more customized offerings for specific market segments. Below is a list of companies that offer products that support Toshiba TransferJet technology.




TransferJet software on multiple embedded processors


DragonBoard™ 810 development kit with TransferJet

TransferJet™-Compliant IC Lineup
Package Feature
TC35420AXLG Wireless IC
TJM35420XLQ Transceiver Module
TJM35420USQ microSDIO Card
TJM35420UX / TJM35420AUX
TJM35420MU / TJM35420AMU
USB Adapter for Windows® PCs
MicroUSB Adapter for AndroidTM Smartphones
TransferJet Adapter for iPod®, iPhone® and iPad®

TransferJet™ (Video)

Please click the following video to view TransferJet™ application examples.
Video List
When you click on a thumbnail below, you can view the video.

What is “TransferJet™”?

TransferJet™ is a close proximity wireless transfer technology featuring simple operation, safe communication and efficient transfer of data.

Simple Operation

Just touching two devices

Create digital signage and digital kiosks
Create digital signage and digital kiosks

Intuitive operation: two devices are brought into physical contact so that files are transferred automatically. No need for complex setup, device pairing or the use of access points. Point-to-point connectivity with no host/target relationship. Data transfer can take place between mobile phones and stationary PCs, as well as between two mobile/handheld devices.

Safe Connection

A Short transmission distance means user can specify and restrict which other devices can be connected

Photo exchange between two smartphones
Photo exchange between two smartphones

Short transmission distance minimizes leakage of data, without the need for difficult security measures or setup procedures. Users can register their electronic products to enable TransferJet™ to recognize and connect to specific devices only, minimizing the risk of unintended unauthorized access.

Efficient Transfer

Very High-speed transfer


Physical layer transmission rate is 560 Mbps, maximum data throughput is 375 Mbps. Just a few seconds needed to transfer a one-hour TV program (e.g., in MPEG4, 170 MB). Capable of adjusting the appropriate data transmission rate according to the quality of the wireless medium. Even if conditions deteriorate, TransferJet™ can maintain the highest possible wireless link by automatically adjusting the data transmission rate. As TransferJet™ is a close proximity wireless system that radiates very low-power radio waves, it causes virtually no interference to other wireless systems, and there is no impact on performance (no interference) even if multiple users simultaneously use TransferJet™ in nearby areas.

Where Toshiba’s Technology Excels

TransferJet Coupler Technology

TJM35420USQ microSDIO Card
TJM35420USQ microSDIO Card

A TransferJet system consists of a coupler and a transceiver IC. Unlike conventional antennas, the TransferJet coupler is designed to reduce far-field electric field components and amplify close electric field signals.

The following describes a small TransferJet coupler for microSD card applications realized using PCB traces.

Measuring only roughly 12 mm by 2 mm, this TransferJet coupler can be etched onto small boards such as microSD cards.

The following figures show that the electric fields over both the X-Y and X-Z planes are properly coupled to the TransferJet coupler.

This shows the coupling of electric field radiation over the X-Z plane to the standard TransferJet coupler.

X-Z Plane

This shows the coupling of electric field radiation over the X-Y plane to the standard TransferJet coupler.

X-Y Plane

Applications and Usage Situations

Since TransferJet™ is simple, safe, fast and stable, it is finding increasingly widespread use in various applications such as home, office, mobile and automotive appliances.

This is Applications.

This is Usage Situation.

This is Usage Situation.

TransferJet™ and TransferJet™ logos are licensed by the TransferJet Consortium.


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iPhone, iPad and iPod are trademarks of Apple Inc.
Windows is a registered trademark of Microsoft Corporation in the United States and other countries.
Android is a trademark of Google Inc.

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·Before creating and producing designs and using, customers must also refer to and comply with the latest versions of all relevant TOSHIBA information and the instructions for the application that Product will be used with or for.