MCX312A-XCBT Mellanox Technologies ConnectX-3 Internal Fiber 10000 Mbit/s
-
$73.10 In Stock - Ships Worldwide Order by 2:00 PM ET for Overnight ShippingWas: $85.00You Save: $11.90 14% OFF
-
Warranty: 90-day return/replacement
Click here to read our Return Policy for returns/replacements.
ConnectX-3
Free ground shipping within the
United States
Government, Federal & Education Procurement
We support quotes, POs, stock docs, and compliance invoicing.
Email: support@buyrouterswitch.com
overview
specifications
resources
faqs
reviews
MCX312A-XCBT Overview
MELLANOX MCX312A-XCBT Connectx-3 Gigabit Ethernet Card With Full Height Bracket
Dual 10GbE SFP+, PCIe Base 3.0
- Wired
- PCI Express Fiber
- 10000 Mbit/s
- Internal
Summary Description
Mellanox Technologies ConnectX-3. Internal. Connectivity technology: Wired, Host interface: PCI Express, Interface: Fiber. Maximum data transfer rate: 10000 Mbit/s. Product colour: Green
Need help with MCX312A-XCBT?
Get pricing, availability, lead time, and compatible options from our team. Chat with us live or email support@buyrouterswitch.com
Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | Mellanox Technologies |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wired |
|---|---|
| Host interface | PCI Express |
| Interface | Fiber |
Network
| Maximum data transfer rate | 10000 Mbit/s |
|---|---|
| Networking standards | IEEE 1588, IEEE 802.1Q, IEEE 802.1Qau, IEEE 802.1Qbb, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3az, IEEE 802.3ba |
| Jumbo frames support | Yes |
| Auto-negotiation | Yes |
Design
| Product colour | Green |
|---|---|
| Internal | Yes |
System requirements
| Windows operating systems supported | Yes |
|---|---|
| Linux operating systems supported | Yes |
| Server operating systems supported | Windows Server 2008, Windows Server 2008 x64, Windows Server 2012, Windows Server 2012 x64 |
Sustainability
| Sustainability certificates | RoHS |
|---|
Weight & dimensions
| Width | 142 mm |
|---|---|
| Depth | 69 mm |
Other features
| Management protocols | MIB, MIB-II, MIB-II, RMON, RMON 2 |
|---|
Resources
Documents
Frequently Asked Questions (FAQs)
What are the primary performance specifications of the Mellanox ConnectX-3 MCX312A-XCBT? +
The MCX312A-XCBT is a high-performance 10GbE dual-port adapter designed for data centers and enterprise environments. It utilizes a PCIe 3.0 x8 interface, delivering ultra-low latency and high bandwidth capabilities. This card is engineered to accelerate compute and storage infrastructures by offloading protocol processing, significantly improving throughput for bandwidth-intensive applications while reducing overall CPU utilization across your server cluster.
Which physical media types are supported by this dual-port SFP+ NIC? +
This network interface card features two SFP+ ports, providing the flexibility to utilize either 10GbE SFP+ optical transceivers or Direct Attach Copper (DAC) cables. This physical versatility allows network administrators to choose the ideal media type based on their specific rack layout and distance requirements, ensuring seamless integration into existing fiber-optic or copper-based 10G switching infrastructures.
Does the ConnectX-3 MCX312A-XCBT support advanced virtualization offloads? +
Yes, this card includes robust support for hardware-based virtualization offloads, including SR-IOV (Single Root I/O Virtualization). By enabling direct access to the network card for virtual machines, the MCX312A-XCBT minimizes hypervisor overhead, resulting in near-native performance for virtualized server environments, making it an excellent choice for dense cloud deployments and high-performance server virtualization clusters.
What is the typical use case for this Mellanox ConnectX-3 adapter in enterprise environments? +
The MCX312A-XCBT is ideal for high-performance computing (HPC), database clusters, and web-scale data centers that require reliable 10GbE connectivity. Its ability to offload CPU-intensive networking tasks makes it a preferred solution for demanding workloads where low latency and consistent packet processing are mission-critical, such as financial trading platforms, large-scale storage arrays, and high-density virtualization environments.
How does the Mellanox ConnectX-3 improve network efficiency beyond raw bandwidth? +
Beyond raw 10GbE throughput, this card optimizes network efficiency through advanced stateless offload features. These include TCP/UDP/IP checksum offloads, Large Send Offload (LSO), and Receive Side Scaling (RSS). By delegating these repetitive networking tasks from the server CPU to the dedicated hardware on the adapter, your system achieves better overall responsiveness and can handle higher volumes of concurrent network traffic.
Are there specific OS driver requirements for deploying the MCX312A-XCBT? +
The ConnectX-3 series is widely supported across major enterprise operating systems, including various Linux distributions, VMware ESXi, and Windows Server versions. For optimal performance and access to the full suite of offload features, it is recommended to install the latest Mellanox OFED (OpenFabrics Enterprise Distribution) drivers or the native inbox drivers provided by your specific operating system vendor.
What PCIe generation and lane configuration does this NIC require? +
This adapter utilizes a PCIe 3.0 x8 interface. While PCIe 3.0 is standard for the ConnectX-3 architecture, it is backward compatible with PCIe 2.0 and PCIe 1.1 slots. To achieve the full 10GbE throughput per port, ensure that the host system slot provides sufficient bandwidth, ideally via a PCIe 3.0 x8 slot, to prevent bottlenecking the high-speed data transfer capabilities of the card.
Can I use this dual-port card for network redundancy in a server? +
Absolutely. With two independent 10GbE SFP+ ports, the MCX312A-XCBT is perfectly suited for link aggregation or NIC teaming configurations. By connecting each port to separate physical switches, you can implement failover and load balancing protocols at the OS or driver level. This provides critical network resiliency, ensuring your applications remain accessible even in the event of a switch or cable failure.
How can I obtain a custom quote for a large volume order of these Mellanox cards? +
If you are planning a large-scale data center refresh or require significant quantity for a project, our team is ready to assist. Please contact our sales department through the BuyRouterSwitch.com website with your specific requirements. We specialize in providing competitive bulk pricing and tailored procurement solutions to ensure your enterprise hardware needs are met efficiently and within your budgetary constraints.
Why should I choose BuyRouterSwitch.com for my enterprise networking procurement? +
BuyRouterSwitch.com is a trusted source for high-quality enterprise hardware, providing businesses with direct access to genuine Mellanox solutions. When you source your components through us, you benefit from our streamlined procurement process and dedicated support. We prioritize the security of your transactions and the integrity of our inventory, making us the preferred partner for IT managers looking to source authentic networking equipment with confidence.
Need Help Choosing the Right Part? Talk to an Expert
-
+1 (800) 870-9487Mon-Fri 8am-5pm EST
-
support@buyrouterswitch.comTechnical support
