Introduction
Tesla Canada has recently introduced a 4-in-1 USB-C hub designed specifically for the updated Model 3 and Model Y. The device expands a single USB-C port in the center console into four high-speed ports, enabling multiple in-car devices to be used simultaneously and improving overall convenience for charging and data transfer.
The hub supports up to 60W fast charging per port and can accommodate up to four devices simultaneously, meeting the fast-charging needs of smartphones, tablets, and other electronics. It is designed to integrate directly into the vehicle’s existing interface without requiring additional wiring. The product is compatible with the 2024 and newer Model 3, as well as the 2025 and newer Model Y. The following section presents a teardown of this hub to examine its internal construction.
Product Appearance
The product comes in a black paper-based packaging box, featuring the TESLA logo and product name printed on the top, with a clean and minimalist design style.
Opening the packaging box reveals the hub securely held in the inner tray.
The package contains only the hub.
The hub features a slanted wedge-shaped design, with a metallic spray-coated finish on the top surface, offering a clean and refined look with a premium feel.
The edges feature smooth, curved transitions, and the Tesla logo is positioned at the center of the top surface.
The bottom housing is coated with a silicone-based, skin-like material, providing a soft and comfortable tactile feel.
A USB-C input port is located on the bottom.
Specifications are printed on the housing:
Model: TSL04
Input: 20V⎓3.25A (65W)
Output per port: 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓3A, 20V⎓3A, 60W (Max)
Input: 20V⎓2.25A (45W)
Output per port: 5V⎓3A, 9V⎓3A, 12V⎓3A, 15V⎓2.4A, 20V⎓1.8A, 36W (Max)
The product is certified with FCC, UKCA, and CE.
Four USB-C output ports are located on the front of the device.
From the side, the body features smooth and well-rounded contours.
The length of the hub is about 138.34 mm (5.45 inches).
The width is about 42.17 mm (1.66 inches).
The maximum thickness is about 14.42 mm (0.57 inches).
That's how big it is in the hand.
The weight is about 75 g (2.65 oz).
Using an Apple 140W charger to power the hub, the ChargerLAB POWER-Z KM003C shows that the USB-C1 port supports QC3+/5, FCP, SCP, AFC, SFCP, PD3.0, PPS, and DCP charging protocols.
It also supports five fixed PDOs of 5V3A, 9V3A, 12V3A, 15V3A, and 20V3A, as well as two sets of PPS voltage range of 3.3-11V3A and 3.3-21V3A.
The USB-C2 port supports the same protocols as the USB-C1 port.
The PDO profiles are also identical.
The USB-C3 port supports the same protocols as the USB-C1 and USB-C2 ports.
The PDO profiles are also identical.
The USB-C4 port supports the same protocols as the first three ports.
The PDO profiles are also identical across all ports. In other words, all four USB-C ports deliver the same single-port output performance and support blind plugging for power delivery.
Overview of real-world usage scenarios: the narrow, elongated, streamlined profile is precisely designed to fit the center console storage compartment.
The top metal latch structure secures the product firmly within the storage compartment, requiring no additional space and preventing displacement during driving vibrations. The four USB-C fast-charging ports are plug-and-play and support non-destructive installation.
Teardown
Next, let's take it apart to see its internal components and structure.
The front and rear housings can be pried open, with the edges secured by snap-fit clips.
The PCB module is secured with screws.
Remove the screws and take out the PCBA module.
The back of the PCB is covered with a pad made of thermal conductive pads and foam adhesive, providing auxiliary heat dissipation and shock absorption protection.
The USB-C input port is soldered onto a separate small PCB. The main board features a PD power delivery controller chip, power control MOSFETs, an MCU, and a buck-boost SoC. Two inductor areas are hollowed out to reduce overall thickness.
On the back side, there are synchronous buck-boost MOSFETs for two independent buck-boost circuits, solid capacitors, VBUS MOSFETs, and other components. It is observed that both buck-boost circuits use an identical design, with a fully symmetrical component layout.
The E-Marker chip, marked “332D” and identified as HUSB332D, is a USB Type-C electronic marker (eMarker) chip newly introduced by Hynetek. It supports USB Type-C Specification 2.2, USB Power Delivery 3.1, USB 4.2.0, and Thunderbolt 3 and 4 standards. It also supports USB PD 3.1 EPR (Extended Power Range). In addition, the HUSB332D has passed USB-IF certification, with TID number 9125.
Here is the information about Hynetek HUSB332D.
The TVS diodes marked “DE” are used for overvoltage protection.
The PD power reception chip is from Hynetek, model HUSB238. It is a highly integrated USB Power Delivery sink (PD sink, also known as a PD trigger chip) capable of supporting up to 100W of rated power delivery. It is compatible with USB PD 3.0 V1.3 and USB Type-C V1.4 standards. It also supports BC1.2 DCP, CDP, SDP, and Apple 5V/2.4A charging protocols. A standard PD power adapter can be used to replace traditional DC power supplies.
The HUSB238 has obtained USB-IF certification, with TID 3666. It can be used in electronic devices with traditional barrel connectors or USB Micro-B power connectors, such as IoT devices, wireless chargers, drones, smart speakers, power tools, and other applications.
Here is the information about Hynetek HUSB238.
The power control MOSFET is from AGMsemi, model AGM40P75A. It is a P-channel MOSFET rated at -40V with an on-resistance of 7 mΩ, packaged in a PDFN 5×6 package.
The MCU is used for intelligent power distribution across output ports. It is marked “B80235031” and comes in a QFN20 package.
The buck-boost SoC used for two of the USB-C ports is from Injoinic, model IP6557. It is a highly integrated chip that combines a buck-boost controller with integrated path NMOS control. It supports a wide range of fast-charging protocols, including QC2.0/3.0/3+/4+/5, FCP, HSCP, AFC, MTK, UFCS, as well as USB-C PD 3.1, PPS, and EPR 28V output.
With only one inductor and a power MOSFET required, it enables a complete buck-boost fast-charging solution, effectively reducing overall solution size and lowering BOM cost, making it well-suited for in-vehicle charging applications.
The integrated buck-boost controller of the IP6557 can deliver up to 140W (28V/5A) output power. It supports NTC-based board-level temperature sensing and can intelligently adjust output power based on temperature conditions. It also includes a built-in 14-bit ADC for accurate measurement of input/output voltage and current, as well as IO voltage.
The IP6557 fast-charging output features CV/CC characteristics. When the output current is below the set threshold, it operates in constant voltage (CV) mode, maintaining a stable output voltage. When the output current exceeds the set threshold, it switches to constant current (CC) mode, with the output voltage being reduced accordingly. In addition, it integrates multiple protection functions, including input over-voltage protection (OVP), under-voltage protection (UVP), output over-voltage protection, under-voltage protection, over-current protection (OCP), short-circuit protection (SCP), and over-temperature protection (OTP). It is packaged in a QFN40 (5 mm × 5 mm) form factor.
The synchronous buck-boost MOSFETs used in combination are from APM, model AP75N04NF. These are N-channel MOSFETs rated at 40V with an on-resistance of 4.1 mΩ, packaged in a PDFN 5×6-8L form factor.
The associated buck-boost inductor is mounted in a recessed layout to reduce overall thickness.
The buck-boost output filtering uses a solid capacitor rated at 25V, 100μF.
Another capacitor with the same specifications is also used.
The VBUS MOSFET on the USB-C1 port is also an APM AP75N04NF.
The VBUS MOSFET on the USB-C2 port is also an APM AP75N04NF.
The buck-boost SoC for the other two USB-C ports is also Injoinic IP6557.
The four synchronous buck-boost MOSFETs used in the design are also APM AP75N04NF.
Close-up view of the paired buck-boost inductor.
The buck-boost output filtering also uses a solid capacitor rated at 25V, 100μF.
Another capacitor has the same specifications.
The VBUS MOSFET for the USB-C3 port is also an APM AP75N04NF.
The VBUS MOSFET for the USB-C4 port is also an APM AP75N04NF.
Each USB-C socket features a plastic outer casing and a steel sleeve, with a rubber ring at the front for sealing.
Well, those are all components of the Tesla 4-in-1 USB-C Hub for Model 3/Y.
Summary of ChargerLAB
Here is the component list of the Tesla 4-in-1 USB-C Hub for Model 3/Y for your convenience.
The hub features a slanted wedge-shaped design, with a metallic spray finish on the top and a silicone-based, skin-like coating on the bottom, offering a clean and premium feel. Designed specifically for the updated Model 3 and Model Y, it integrates directly with the vehicle’s original port for easy installation.
All four USB-C output ports support up to 60W, with identical output performance and blind-plug power delivery. They are compatible with fast-charging protocols such as PD, QC, and PPS, allowing simultaneous charging of four devices with excellent compatibility.
After taking it apart, we found that it uses a Hynetek HUSB238 PD sink chip for input voltage negotiation, paired with a HUSB332D eMarker chip for cable identification. The two buck-boost circuits are each controlled by an Injoinic IP6557 SoC, paired with APM AP75N04NF synchronous buck-boost MOSFETs to achieve efficient buck-boost conversion.
It also uses an AGMsemi AGM40P75AP MOSFET for power control, paired with an MCU for intelligent output power distribution. The USB-C port sockets are reinforced and sealed with a plastic housing, steel sleeve, and rubber ring. The back of the PCB is covered with thermal pads and foam adhesive, providing both heat dissipation and shock resistance, reflecting solid craftsmanship.
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