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Lenovo ThinkPad Network Adapter
Lenovo (0807320183488 / 4X90E51405) - Cabling technology: 10/100/1000BaseT(X) - Wired - RJ-45 - USB - Depth: 280 mm - Height: 16 mm - Width: 100 mm - Ethernet LAN - Plug and play - Ethernet LAN data rates: 10,100,1000 Mbit/s
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Lenovo ThinkPad Network Adapter: A Comprehensive Overview
The Lenovo ThinkPad Network Adapter is a high‑performance, plug‑and‑play device designed to extend the connectivity of Lenovo ThinkPad laptops and other compatible systems. By converting a single USB 3.0 port into a robust Gigabit Ethernet interface, this adapter delivers reliable wired networking with minimal setup.
Key Technical Specifications
- USB Interface: SuperSpeed USB 3.0 (5 Gbps) – ensures ample bandwidth for the adapter itself and leaves headroom for other peripherals.
- Ethernet Port: RJ‑45, 10/100/1000BaseT(X) – supports full Gigabit speeds on modern networks.
- Maximum Data Transfer Rate: 1 Gbps (1000 Mbit/s).
- Dimensions: 16 mm height, 100 mm width, 280 mm depth; compact enough to fit in a laptop’s USB bay.
- Weight: 45 g – lightweight for portability.
- Operating Temperature: 0 °C to 70 °C – suitable for both office and field environments.
Compliance & Certifications
The adapter meets a broad range of international safety and performance standards, ensuring compatibility across global markets:
- VCCI, CB, Ukraine CoC, ACA/C‑Tick, CE MARK, ICES, KC (Korea), EAC, FCC, BSMI
- Network Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3az – guaranteeing adherence to Ethernet specifications and energy‑efficient operation.
Plug & Play Simplicity
The adapter is engineered for instant connectivity. Simply insert the USB plug into a compatible port; Windows (7/8/8.1) or other supported operating systems will automatically detect and configure the device without manual driver installation.
Design & Build Quality
- Color: Classic black – blends seamlessly with Lenovo’s professional aesthetic.
- External Form Factor: Designed as an external module, it does not interfere with the laptop’s internal architecture.
- Durability: Constructed from high‑grade materials to withstand frequent use and transport.
Use Cases & Applications
The Lenovo ThinkPad Network Adapter is ideal for scenarios where wireless connectivity may be unreliable or insufficient:
- Enterprise Workstations: Provides a stable wired connection for critical applications such as VoIP, video conferencing, and large file transfers.
- Remote Locations: Enables secure, high‑speed internet access in environments with limited Wi‑Fi coverage.
- Gaming & Streaming: Reduces latency compared to wireless connections, enhancing online gaming and media streaming experiences.
Compatibility Overview
This adapter is specifically engineered for Lenovo ThinkPad models but also functions with any system that offers a USB 3.0 port and supports standard Ethernet drivers. The device’s RTL8153 chipset ensures broad driver support across Windows, macOS, and Linux distributions.
Installation & Setup Guide
- Insert the adapter: Plug the USB connector into an available USB 3.0 port on your ThinkPad or compatible laptop.
- Connect Ethernet cable: Attach a standard RJ‑45 Ethernet cable to the adapter’s port and connect the other end to your router, switch, or network outlet.
- Verify connection: Open the operating system’s network settings; the new Ethernet interface should appear automatically. Test connectivity by browsing the web or pinging a known IP address.
Performance Highlights
- Consistent Gigabit throughput even under heavy network load.
- Low power consumption thanks to efficient USB 3.0 design.
- Minimal latency, making it suitable for real‑time applications such as video conferencing and online gaming.
Maintenance & Troubleshooting Tips
- Keep firmware updated: While the adapter is plug‑and‑play, occasional firmware updates may improve compatibility with new network protocols.
- Check cable quality: Use high‑quality Ethernet cables (Cat5e or higher) to avoid signal degradation.
- Inspect ports: Ensure that both USB and RJ‑45 connectors are clean and free from debris for optimal contact.
Conclusion
The Lenovo ThinkPad Network Adapter delivers a reliable, high‑speed wired networking solution in a compact, lightweight package. Its adherence to global standards, plug‑and‑play ease of use, and robust performance make it an essential accessory for professionals who demand consistent network connectivity across diverse environments.
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| Tags | Adapter Usb adapter USB 3.0 adapter Ethernet adapter Gigabit adapter Network adapter Brand new adapter Sealed adapter Lenovo adapter Gigabit ethernet adapter Lenovo Ethernet Adapter ThinkPad Network Adapter Sealed Ethernet Adapter Genuine adapter Free ship adapter Model RTL8153 adapter Usba To Rj45 Adapter Compatible Lenovo Adapter ThinkPad Adapter RJ45 adapter Model Adapter RTL8153 Adapter Lenovo network adapter ThinkPad ethernet adapter USB Gigabit Adapter Ethernet RJ45 Adapter ThinkPad USB adapter Lenovo USB adapter ThinkPad Gigabit Adapter USB 3.0 gigabit adapter 4X90E51405 adapter RTL8153 network adapter USB 3.0 ethernet adapter ThinkPad RJ45 adapter |
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| Identifiers | |
| Brand |  Lenovo is a Chinese technology company that produces a wide range of electronics, including laptops, tablets, smartphones, and servers. The company is headquartered in Beijing, and has a large international presence. Lenovo is the world's largest PC vendor, and is also a major player in the smartphone and tablet markets. |
| Model | Lenovo 4X90E51405 |
| MPN | Lenovo 4X90E51405 |
| ID | 2022279 |
| Dimensions / Weight | |
| Key Features | |
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Cabling technology The type of cable or connector technology used by the product, such as Ethernet standards (e.g., 10/100Base‑T, 1000BASE‑T, 10GBase‑T) or other networking cable types. It indicates the physical medium and protocol supported for data transmission.
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10/100/1000BaseT(X) |
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Certification A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.
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VCCI, CB, Ukraine CoC, ACA/C-Tick, CE MARK, ICES, KC (Korea), EAC, FCC, BSMI |
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Connectivity technology The network and data interface technologies supported by the product, such as Wired, Wireless, USB, Bluetooth, or combinations thereof. Each value represents a distinct technology that can be used for communication or power delivery.
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Wired |
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Depth The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
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280 mm |
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Ethernet LAN Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.
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Yes |
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Height The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
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16 mm |
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Host interface List of physical or logical interfaces that allow communication between a host device and other components, such as USB, PCI Express, SATA, M.2, Ethernet, Thunderbolt, or similar standards.
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RJ-45 |
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Interface List of physical or logical interfaces that allow communication between a hard drive and other devices, such as SATA, M.2 PCIe, U.2, SAS, NVMe, or other standard connections.
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USB |
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Internal Indicates whether the product is designed to be installed inside a computer system, such as an internal hard drive, SSD, or network card. A value of "Yes" means it can be mounted within the chassis; "No" indicates it is intended for external use.
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No |
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Maximum data transfer rate The highest theoretical speed at which a device can send or receive data, expressed in bits per second (bps) or its multiples such as kbps, mbps, gbps, etc. This value represents the upper bound of throughput under optimal conditions and is useful for comparing performance across devices and interfaces.
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1000 Mbit/s |
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Networking standards A list of the networking protocols and standards that a device can support or comply with, such as IEEE 802.11 variants for wireless, IEEE 802.3 for Ethernet, or other relevant networking specifications. The values are typically separated by commas and may include both technical identifiers and consumer‑friendly labels.
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IEEE 802.3,IEEE 802.3az,IEEE 802.3u,IEEE 802.3x |
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Plug and play Indicates whether the product can be used immediately after installation without requiring additional configuration or drivers.
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Yes |
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Width The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
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100 mm |
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