Chelsio T520-CR network card Internal
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T520-CR
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overview
specifications
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T520-CR Overview
CHELSIO T520-CR High Performance Dual Port 10 Gbe Unified Wire Adapter Pci Express X8 Optical Fiber
PCI-E Gen 3 x8, MSI-x, MSI, Ethernet
- Wired
- PCI-X
- Internal
Summary Description
Chelsio T520-CR. Internal. Connectivity technology: Wired, Host interface: PCI-X
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Specifications
Overview
| Condition | Refurbished |
|---|---|
| Brand | CHELSIO |
| Stock | In Stock |
Ports & interfaces
| Connectivity technology | Wired |
|---|---|
| Host interface | PCI-X |
Network
| Networking standards | IEEE 802.1p, IEEE 802.1Q, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3az, IEEE 802.3x, IEEE 802.3z |
|---|---|
| Ethernet LAN | Y |
Design
| Internal | Y |
|---|
Operational conditions
| Operating temperature (T-T) | 0 - 55 °C |
|---|---|
| Operating relative humidity (H-H) | 5 - 95% |
Sustainability
| Sustainability certificates | RoHS |
|---|
Weight & dimensions
| Width | 167.6 mm |
|---|---|
| Depth | 68.8 mm |
Other features
| Power supply | 15 W |
|---|
Frequently Asked Questions
What are the primary performance advantages of the Chelsio T520-CR adapter? +
The Chelsio T520-CR is a fifth-generation 10GbE Unified Wire adapter that offloads TCP, iSCSI, and iWARP RDMA processing from the host CPU. By handling these protocol-heavy tasks on the adapter hardware, it significantly reduces CPU overhead, lowers latency, and maximizes throughput for high-performance server environments, making it ideal for data-intensive storage and networking applications.
Can the T520-CR support both copper and fiber connectivity? +
The T520-CR is specifically designed with two 10GbE SFP+ ports. These ports provide the flexibility to use either SFP+ Direct Attach Copper (Twinax) cables for short-reach, low-latency connections within a rack, or optical SFP+ transceivers for longer-distance fiber links. This versatility ensures the adapter fits into various data center infrastructure designs without requiring additional hardware components.
What operating systems are compatible with the Chelsio T520-CR? +
This adapter maintains broad compatibility across major enterprise operating systems, including Linux, Windows Server, VMware ESXi, and FreeBSD. Chelsio provides robust, well-supported drivers for these platforms, ensuring seamless integration into virtualized or bare-metal server environments while maintaining full access to the card's sophisticated offload and traffic management features.
Is the T520-CR suitable for iSCSI storage offloading? +
Absolutely. The T520-CR is engineered for advanced storage networking, providing full hardware-based iSCSI offload capabilities. By executing the iSCSI protocol directly on the adapter, it relieves the server processor of storage traffic duties. This is highly effective for building high-performance storage area networks where minimizing CPU utilization while maintaining high I/O throughput is a critical requirement.
How does the T520-CR manage traffic to ensure high reliability? +
The adapter incorporates advanced traffic management features, including packet filtering, VLAN tagging, and comprehensive stateless offloads. These features allow the T520-CR to maintain consistent performance under heavy workloads. Its hardware-level error checking and offload engines ensure that data transmission remains reliable and efficient, even during peak traffic spikes that would typically cause latency or packet loss on standard NICs.
Does the T520-CR require specific licensing for its advanced offload features? +
Chelsio includes the full suite of offload engines—including TOE, iSCSI, and iWARP—directly within the T520-CR hardware. There are no additional software licenses or feature keys required to unlock these advanced networking capabilities. Once the appropriate drivers are installed, all protocol offload functionality is available for immediate deployment within your server architecture.
Can the T520-CR be used in a virtualized server environment? +
Yes, it is highly optimized for virtualization. Through support for technologies like SR-IOV (Single Root I/O Virtualization), the T520-CR allows virtual machines to access physical network resources directly. This drastically improves network performance within virtualized hosts, reduces the latency overhead introduced by the hypervisor, and ensures efficient traffic distribution across multiple virtual guest instances.
What is the typical power consumption profile of the T520-CR? +
The T520-CR is designed with power efficiency in mind, adhering to standard PCIe power specifications for server-grade network adapters. While exact consumption fluctuates based on port load and traffic volume, the offload capabilities contribute to overall data center energy efficiency by reducing the workload on the main system processor, which in turn lowers the total power draw of the server node.
How can I obtain a bulk quote for the Chelsio T520-CR from BuyRouterSwitch.com? +
If you are planning a large-scale infrastructure upgrade and require multiple units, our sales team is ready to assist you. Simply reach out via our website's contact form or direct sales email with your quantity requirements. We specialize in providing competitive, volume-based pricing for enterprises and data centers looking to procure high-quality networking hardware efficiently.
Why should I choose BuyRouterSwitch.com for my Chelsio adapter procurement? +
BuyRouterSwitch.com is a trusted source for authentic enterprise-grade networking equipment. We focus on providing a secure, streamlined procurement experience for IT professionals and procurement managers alike. By sourcing your hardware through us, you gain access to professional support and reliable logistics, ensuring that your critical infrastructure components are genuine and delivered exactly according to your project timeline.
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