StarTech.com / USB network adapter

StarTech.com US1GC303APD · USB network adapter

P/N: US1GC303APD

USB network adapterUSB network adapter

Device with an explicit manufacturer Product ID. Verify interfaces, power, drivers and conditions of documented modes before ordering. UASP support: Yes · Number of ports: 3 · Bus type: USB 5Gbps

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StarTech.com US1GC303APD · USB network adapter — Specification schematic, not a product photograph or installation drawing.
Specification schematic, not a product photograph or installation drawing. Citadex Systems · Specification source
01 / Specifications
MPN / P/N
US1GC303APD
Important: source qualifications
The source contains conflicting generic connector and Power Delivery labels. A connector rating does not guarantee charging power; verify the exact device mode, supply and notes below.
Manufacturer designation
USB-C to Ethernet Adapter with 3-Port USB 3.0 Hub and Power Delivery
Manufacturer conditions
The adapter's USB-C port is for USB Power Delivery only. It; does not support DisplayPort alt mode, or data transfers.; Not all USB-C ports support the full functionality of the USB; Type-C standard. Ensure that your host laptop's USB-C port; supports USB Power Delivery 2.0; The adapter can connect to a host laptop’s USB-C port that; doesn’t support USB Power Delivery 2.0. However, in this; configuration if a power adapter is connected to the hub, it will; not pass power through to your host laptop.; USB 3.0 is also known as USB 3.1 Gen 1; this connectivity; standard offers speeds up to 5Gbps.
System and cable requirements
Available USB Type-C port - USB 3.0 (5Gbps) (to ensure the; network adapter powers and charges your laptop, your host; laptop's USB-C port must support USB Power Delivery 2.0); Optional: USB-C power adapter (for example, your laptop’s; USB-C based power adapter)
Power source
USB-Powered
Power Delivery — subject to manufacturer conditions
60W
Input voltage
5V DC
Output voltage
5 DC
Colour
Black
Network adapter form factor
Attached Cable
Material
Plastic
Cable Length
5.9 in [15 cm]
Product length
3.7 in [95.0 mm]
Product width
1.6 in [41.0 mm]
Product height
0.7 in [17.0 mm]
Product weight
1.6 oz [46.0 g]
Operating temperature
0C to 45C (32F to 113F)
Storage temperature
-10C to 70C (14F to 158F)
Humidity
10~90% RH (Non-condensing)
Maximum documented data rate
5 Gbps (USB 3.0); 2 Gbps (Ethernet; Full-Duplex)
Flow Control
Full duplex flow control
Type and rate
USB 3.0 (5Gbps)
UASP support
Yes
Compatible networks
10/100/1000 Mbps
Auto-Negotiation
Yes
Auto MDIX
Yes
Full-duplex support
Yes
Jumbo-frame support — manufacturer limit
9K max.
USB-C device port purpose
USB Power Delivery
USB-C host connection
Yes
Fast-Charge Port(s)
No
Number of ports
3
Interface
USB 3.2 Gen 1 (5Gbps); RJ45 (Gigabit Ethernet)
Bus type
USB 5Gbps
Industry standards
USB 3.0 - Backward compatible with USB 2.0 and 1.1; IEEE 802.3, IEEE 802.3u, IEEE 802.3ab; IEEE 802.3az Energy-Efficient Ethernet, IEEE 802.3x Flow; Control, 802.1q VLAN Tagging, 802.1p Layer 2 Priority Encoding
Chipset ID
VIA/VLI - VL100; VIA/VLI - VL813; Realtek - RTL8153
Form factor
Compact
Connector 1 (Quantity)
1
Connector 1
USB-C (100W PD Only)
Connector 2 (Quantity)
3
Connector 2
USB-A (5Gbps, 4.5W)
Connector 3 (Quantity)
1
Connector 3
RJ-45
Connector 4 (Quantity)
1
Connector 4
USB-C (5Gbps, 4.5W)
Source power-rating qualification
Source power-rating qualification: the manufacturer Power Delivery row specifies 60W. The generic Connector 1 descriptor "USB-C (100W PD Only)" is connector classification text, not a promise that this adapter passes through or supplies 100W. Use the documented 60W product PD rating; actual host charging also requires a compatible USB-C PD 2.0 charger/host. The PD-only USB-C port does not support data transfers or DisplayPort Alt Mode.
Documented selection limits
Match the exact host interface, peripheral/device protocol, connector, firmware, OS/driver and power requirements before ordering. Published maximum rates are interface limits, not guaranteed application throughput. No universal device or current/future OS compatibility is implied. Match USB host generation and OS/driver support; USB bus bandwidth may limit Ethernet line-rate performance. Fiber/SFP variants require the correct transceiver/link partner, supplied modules must be checked. RJ45 Ethernet does not imply PoE output. Source power-rating qualification: the manufacturer Power Delivery row specifies 60W. The generic Connector 1 descriptor "USB-C (100W PD Only)" is connector classification text, not a promise that this adapter passes through or supplies 100W. Use the documented 60W product PD rating; actual host charging also requires a compatible USB-C PD 2.0 charger/host. The PD-only USB-C port does not support data transfers or DisplayPort Alt Mode.

Specification source: StarTech.com ↗
Checked against documentation: 16.10.2026

Reference catalogue for quotation requests. Availability, production status, condition, price, lead time and warranty are individually confirmed. A listed part number is not a stock claim.