2 layers50.5 × 45 mm USBHub copy, the printed circuit board in 3D

USBHub copy

A custom designed PCB usb hub with 2 USB-A ports and a 4 pin header for easy access.

Size: 50.5 × 45 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 30
Nets: 44
Pads: 140
Tracks, vias: 382, 13
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 1 Feb 2026
Updated: 14 Mar 2026

Overview

USBHub copy is an open-source printed circuit board by Wjchou2, from the Wjchou2/USB-Hub repository on GitHub. It is a 2-layer board of 50.5 × 45 mm with 30 parts on 44 nets, routed with 382 tracks and 13 vias.

It is built around the AMS1117-3.3. Its parts include 10 resistors, 7 capacitors, 4 connectors, 2 ICs and 1 diode. It belongs with the interfaces and adapters boards of this library.

Main components

AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators

README

README.md

Endless' USB HUB

A compact custom USB 2.0 hub PCB based on the USB2514B controller. It features two USB-A ports and a 4-pin header breakout for easy integration with embedded systems or custom hardware projects. Simply use a USB-C to C cable to plug the hub into your computer, and check that the LED indicator is on. Then connect any USB-A devices and they will show up on your computer. I made this project because I have a Mac and never seem to have enough adapters, I also find that I use 4 pin headers often when tinkering with microcontrollers, so I added an easy access 4 pin header integrated into the hub.

No firmware needed! Screenshot 2026-01-31 at 4 56 15 PM

BOM:

Designator	Footprint	Quantity	Designation	Link	Cost	Total Cost
U2	SOT-223	1	AMS1117-3.3	https://www.lcsc.com/product-detail/C6186.html?s_z=n_AMS1117-3.3	0.1876	0.1876
R3	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	1	12k	https://www.lcsc.com/product-detail/C2906989.html?s_z=n_12k%25201%2525%25200603	0.001	0.001
R7,R6,R8,R9	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	4	10k	https://www.lcsc.com/product-detail/C98220.html?s_z=n_10k%25201%2525%25200603	0.0013	0.0052
J2,J3	USB_A_Receptacle_GCT_USB1046	2	USB_A	https://www.lcsc.com/product-detail/C6307429.html?s_z=n_USB1046	1.1405	2.281
C2,C1,C7	C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	3	0.1µ	https://www.lcsc.com/product-detail/C53084456.html?s_z=n_100%2520nF%252050V%2520X7R%25200805	0.0018	0.0054
C4,C3	C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	2	22 pF	https://www.lcsc.com/product-detail/C695385.html?s_z=n_22%2520pF%2520NPO%25200603	0.051	0.102
Y1	Crystal_SMD_3225-4Pin_3.2x2.5mm	1	12.000 MHz	https://www.lcsc.com/product-detail/C1647.html?s_z=n_18%2520pF%2520crysta	0.3272	0.3272
J5	PinHeader_1x04_P2.54mm_Vertical	1	Conn_01x04_Socket	https://www.lcsc.com/product-detail/C52016392.html?s_z=n_Pin%2520Header%25201x04%25202.54mm	0.0171	0.0171
R2,R1	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	2	5.1k	https://www.lcsc.com/search?q=5.1k%25201%2525%25200603&s_z=n_5.1k%25201%2525%25200603	0.0012	0.0024
R4,R5	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	2	100k	https://www.lcsc.com/product-detail/C14675.html?s_z=n_100k%25201%2525%25200603	0.0013	0.0026
C6,C5	C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	2	10 µF	https://www.lcsc.com/product-detail/C342827.html?s_z=n_10%2520uF%252016V%2520X7R%25201206	0.0897	0.1794
F1	Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder	1	0.5A	https://www.lcsc.com/product-detail/C7542969.html?s_z=n_PTC%2520fuse%25200.5A%25201812	0.0403	0.0403
J1	USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	1	USB_C_Receptacle_USB2.0_16P	https://www.lcsc.com/product-detail/C2988369.html?s_z=n_USB%2520C%2520receptacle%252016P%2520top%2520mount	0.0829	0.0829
U1	QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm	1	USB2514B_Bi	https://www.lcsc.com/product-detail/C220807.html?s_z=n_USB2514B%2520USB%2520hub%25204-port%2520Octopart	2.7952	2.7952
R10	R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	1	1.5kΩ	https://www.lcsc.com/product-detail/C22843.html?s_z=n_1.5k%25201%2525%25200603	0.0012	0.0012
D1	LED_0201_0603Metric_Pad0.64x0.40mm_HandSolder	1	LED	https://www.lcsc.com/search?q=LED%25200603%2520Green&s_z=n_LED%25200603%2520Green	0.0667	0.0667
						6.0972

Category and platform

Interfaces and adapters

Project files

Show this board on your page

https://pcbkit.io/boards/Wjchou2/USB-Hub

The board's own page, for a message or a post.

Source

Repository: Wjchou2/USB-Hub
Board file: USB HUB PCB/USBHub copy.kicad_pcb
Commit: 6436afd
Licence: Not stated

Parts

Qty	Value	Footprint	References
4	10k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R6, R7, R8, R9
4	MountingHole	MountingHole:MountingHole_2.2mm_M2	H1, H2, H3, H4
2	0.1µ	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C2
2	10 µF	Capacitor_SMD:C_1206_3216Metric_Pad1.33x1.80mm_HandSolder	C5, C6
2	100k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R4, R5
2	22 pF	Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder	C3, C4
2	5.1k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R1, R2
2	USB_A	Connector_USB:USB_A_Receptacle_GCT_USB1046	J2, J3
1	0.1uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C7
1	0.5A	Fuse:Fuse_1812_4532Metric_Pad1.30x3.40mm_HandSolder	F1
1	1.5kΩ	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R10
1	12.000 MHz	Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm	Y1
1	12k	Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder	R3
1	AMS1117-3.3	Package_TO_SOT_SMD:SOT-223	U2
1	Conn_01x04_Socket	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical	J5
1	LED	LED_SMD:LED_0201_0603Metric_Pad0.64x0.40mm_HandSolder	D1
1	USB2514B_Bi	Package_DFN_QFN:QFN-36-1EP_6x6mm_P0.5mm_EP3.7x3.7mm	U1
1	USB_C_Receptacle_USB2.0_16P	Connector_USB:USB_C_Receptacle_GCT_USB4105-xx-A_16P_TopMnt_Horizontal	J1

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Questions

How big is the USBHub copy PCB?

It measures 50.5 × 45 mm and has 2 copper layers, 1.6 mm thick.

What parts does the USBHub copy use?

30 parts, built around the AMS1117-3.3. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the USBHub copy KiCad files?

From the Wjchou2/USB-Hub repository on GitHub, at the commit this page was made from: the board is USB HUB PCB/USBHub copy.kicad_pcb and its schematic USB HUB PCB/USBHub copy.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the USBHub copy design in my own project?

Its repository states no licence, so its author keeps all rights: ask Wjchou2 before reusing the design.