Intel

Intel PTRB-220091031 Gigabit CT PCI-E Network Adapter

Name: Intel PTRB-220091031 Gigabit CT PCI-E Network Adapter
Brand: Intel
SKU: PTRB-220091031

Reliable Intel Gigabit Ethernet adapter that adds high-speed wired networking to any PCI-Express desktop.

$65.00*

✓ In Stock on Amazon.com

*Price sourced from Amazon.com. Last updated:Jul 14, 2026.Price and availability are subject to change.

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Overview

The Intel PTRB-220091031 Gigabit CT PCI-E Network Adapter is a straightforward solution for adding reliable Gigabit Ethernet connectivity to a desktop PC. Built around Intel's proven networking silicon, this adapter slots into a standard PCI-Express lane and delivers up to 1 Gbps wired throughput — ideal for users who need a dependable, high-speed connection for data transfers, streaming, or online gaming without relying on wireless.

As an OEM product, the adapter ships without retail packaging frills, but it benefits from Intel's extensive driver ecosystem, ensuring compatibility across Windows, Linux, and other major operating systems. The card's efficient design offloads network processing from the CPU, helping maintain overall system responsiveness even during heavy network activity. For anyone whose motherboard lacks a built-in Ethernet port — or whose onboard NIC has failed — this Intel adapter provides a trusted, no-nonsense replacement.

Key Features

Intel - expi9301ctblk - intel gigabit ct desktop adapter - network adapter

OEM

Specifications

Brand

Intel

Model

PTRB-220091031

Interface

PCI-Express

Data Link Protocol

Gigabit Ethernet

Speed

Up to 1 Gbps

Compatible Devices

Desktop

Package Type

OEM

Pros & Cons

👍 Pros

Intel-branded chipset delivers proven stability and broad OS driver support.
Gigabit Ethernet provides up to 1 Gbps throughput for fast file transfers and low-latency networking.
PCI-Express interface offers easy installation and does not consume legacy PCI slots.
Low CPU utilization thanks to Intel's efficient onboard processing and offload features.

👎 Cons

OEM packaging may lack a printed quick-start guide or installation disc.
Full-height bracket only, which may not fit low-profile or slim desktop cases without an adapter bracket.
Single-port design limits you to one Ethernet connection per card.
No Wi-Fi capability — strictly a wired Ethernet solution.

Frequently Asked Questions

What type of expansion slot does the Intel PTRB-220091031 require?

It requires a PCI-Express (PCI-E) slot, which is available on most modern desktop motherboards.

What network speed does this adapter support?

It supports Gigabit Ethernet, providing data transfer rates up to 1 Gbps over a wired connection.

Does this adapter come with drivers or is it plug-and-play?

Intel provides driver support for this adapter across major operating systems. You may need to download the latest drivers from Intel's support site for optimal performance.

Is this adapter an OEM or retail version?

This is an OEM version, which means it may come in simplified packaging without a retail box or printed manual.

Can this adapter be used in a low-profile desktop case?

The standard bracket is full-height. Check whether a low-profile bracket is included or available separately if you have a slim or compact desktop.