Mellanox Technologies MCX4121A-ACAT network card Internal Fiber
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MCX4121A-ACAT
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MCX4121A-ACAT Overview
MELLANOX MCX4121A-ACAT Connectx-4 Lx En Pcie 3.0 25 Gigabit Network Adapter
ConnectX-4 Lx EN network interface card, 25GbE dual-port SFP28, PCIe3.0 x8, tall bracket, ROHS R6
- Wired
- PCI Express 3.0 Fiber
- Internal
Summary Description
Mellanox Technologies MCX4121A-ACAT. Internal. Connectivity technology: Wired, Host interface: PCI Express, Interface: Fiber
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Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Mellanox |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wired |
|---|---|
| Host interface | PCI Express |
| Interface | Fiber |
| Fiber ports quantity | 2 |
| Fiber optic connector | SFP28 |
| PCI version | 3.0 |
Network
| Networking standards | IEEE 802.1AX, IEEE 802.1Q, IEEE 802.1Qau, IEEE 802.1Qaz, IEEE 802.1Qbb, IEEE 802.1Qbg, IEEE 802.3ad, IEEE 802.3az |
|---|
Design
| Internal | Yes |
|---|
System requirements
| Windows operating systems supported | Yes |
|---|---|
| Other operating systems supported | FreeBSD |
Weight & dimensions
| Width | 142 mm |
|---|---|
| Height | 69 mm |
Other features
| Data transfer rate | 25 GT/s |
|---|
Frequently Asked Questions
What are the primary performance capabilities of the Mellanox MCX4121A-ACAT? +
The MCX4121A-ACAT is a ConnectX-4 Lx EN network interface card that delivers high-performance 25GbE connectivity. It is engineered to provide low latency and high bandwidth, making it ideal for data centers, cloud computing, and high-performance computing environments that require efficient data throughput and reduced CPU overhead during intensive networking tasks.
How many ports does the MCX4121A-ACAT feature and what is their interface type? +
This network adapter is equipped with dual SFP28 ports. The SFP28 interface allows for 25GbE connectivity while maintaining backward compatibility with 10GbE SFP+ modules, providing flexibility for organizations currently transitioning their infrastructure speeds from 10G to 25G standards.
What PCIe bus version is required for the MCX4121A-ACAT to reach full performance? +
The MCX4121A-ACAT utilizes a PCIe 3.0 x8 interface. To ensure maximum throughput and optimal performance across both 25GbE ports, it is recommended to install this card in a server slot that supports PCIe 3.0 x8 or higher, ensuring the bus bandwidth is sufficient to handle the aggregate traffic load.
Does the Mellanox MCX4121A-ACAT support advanced network offloading? +
Yes, this card supports a robust suite of hardware offloads, including RDMA over Converged Ethernet (RoCE), VXLAN, NVGRE, and GENEVE encapsulation. By offloading these complex network protocols to the NIC hardware, the card significantly reduces CPU utilization, allowing more server resources to be dedicated to application processing.
What is the typical deployment scenario for the MCX4121A-ACAT NIC? +
This adapter is designed for enterprise data centers and virtualization environments. It is frequently deployed in web-tier servers, database management systems, and storage arrays where high-density I/O and low-latency networking are critical for maintaining application responsiveness and managing large-scale traffic bursts efficiently.
Which operating systems are compatible with the MCX4121A-ACAT? +
The Mellanox ConnectX-4 Lx series offers extensive support for major operating systems, including various distributions of Linux, VMware ESXi, and Windows Server. Because it relies on standard Mellanox OFED drivers, integration into existing virtualized or bare-metal stacks is streamlined and highly compatible with standard industry network environments.
Is the MCX4121A-ACAT suitable for high-density rack-mount servers? +
Yes, its efficient power profile and standard form factor make it highly suitable for high-density rack-mount deployments. The card's ability to handle high-bandwidth 25GbE traffic on a low-profile footprint allows data center architects to maximize network performance without compromising on chassis space or thermal constraints within the server rack.
How does this NIC contribute to overall network reliability? +
The MCX4121A-ACAT enhances reliability through robust hardware-based features such as hardware-based packet steering and advanced congestion control mechanisms. These features help maintain consistent network flow and minimize packet loss, even under heavy load, ensuring stable connectivity for mission-critical applications that require uninterrupted data transmission.
Can I receive a bulk quote for multiple MCX4121A-ACAT units through BuyRouterSwitch.com? +
Absolutely. For organizations looking to upgrade entire server clusters or data center rows, we specialize in providing competitive pricing for large volume orders. Simply reach out to our dedicated sales department through our website to request a tailored quote based on your specific quantity requirements and procurement timelines.
Why should I purchase the Mellanox MCX4121A-ACAT from BuyRouterSwitch.com? +
BuyRouterSwitch.com is a trusted provider of enterprise-grade networking hardware. We prioritize supply chain transparency and offer direct access to expert sales guidance, ensuring that you receive the correct hardware for your specific infrastructure needs. By choosing us, you benefit from our commitment to efficiency, competitive pricing, and streamlined procurement processes designed for IT professionals.
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