QNAP CAB-NIC40G30M-QSFP

Overview

The QNAP CAB-NIC40G30M-QSFP is a 3-meter direct attach cable designed to connect two network devices using QSFP+ connectors. It supports data transfer speeds up to 40 Gbps, making it suitable for high-speed connections between compatible 40GbE network interface card (NIC) NAS systems or switches. Its passive twinaxial design requires no additional power, which makes it ideal for short-range connections within data centers or server rooms where reliable and fast communication is essential.

This cable complies with the InfiniBand standard, ensuring dependable performance and broad compatibility with various networking equipment. Its round and durable construction helps manage cables efficiently in tight spaces while maintaining stable, high-bandwidth connections. The QNAP CAB-NIC40G30M-QSFP is a practical solution for IT professionals who need to link storage appliances or network switches without the complexity of active components.

Key features

• QSFP+ male-to-male connectors provide straightforward and secure device linking
• 3-meter length offers flexibility for short-range network setups within racks or server rooms
• Supports 40 Gbps data transfer rates to handle demanding network traffic efficiently
• Passive twinaxial design eliminates the need for external power, reducing complexity and heat
• InfiniBand-compliant design ensures compatibility with a wide range of networking hardware
• Durable round cable construction simplifies cable management and enhances longevity

Key specs

• Cable length: 3 meters
• Connector type: QSFP+ male-to-male
• Data transfer rate: up to 40 Gbps
• Cable type: passive twinaxial
• Standard compliance: InfiniBand

Connectivity and compatibility

This cable is designed to connect 40GbE NIC NAS systems and switches that support QSFP+ interfaces. Its InfiniBand compliance ensures it works reliably with a variety of network devices that adhere to this standard, making it a versatile choice for upgrading or expanding high-speed network infrastructure.

• Compatible with 40GbE network interface cards and switches
• QSFP+ connectors ensure secure and stable connections
• Ideal for data centers, server rooms, and high-performance storage networks

Ideal uses and environments

The QNAP CAB-NIC40G30M-QSFP fits well in environments where short-range, high-speed data transfer is critical. It is well suited to data centers, enterprise server rooms, and professional IT setups that require efficient and reliable connections between storage appliances and network switches. Its passive design reduces power consumption and heat generation, which benefits dense rack installations.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

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Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

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After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

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If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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