# 10Gtek 40G QSFP+ Loopback Module for Network Port Testing | 40Gbps MSA Compliant **Brand:** 10Gtek **SKU:** wjh1634 **ASIN:** B08BRTSJ2L **Canonical URL:** https://crowcrowcrow.com/p/10gtek-40g-qsfp-loopback-module-port-testing-40gbase-passive-switch-nic-router/wjh1634 **Category:** electronics **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹4,649 **Discount:** 24% ## Description 10Gtek 40G QSFP+ Loopback Module for testing QSFP+ ports on switches and routers. MSA compliant, hot-pluggable, and offers excellent heat dissipation. Supports 40Gbps data rates for R&D and production testing. Imported from USA, duties included, arrives via 6-8 days. ## Highlights - MSA Compliant QSFP+ Testing — This module adheres to QSFP+ MSA standards, ensuring compatibility and reliable performance for hot-pluggable QSFP+ ports in switches, NICs, and routers. Supports 40Gbps data rates. - Cost-Effective Port Validation — Substitute a full-featured transceiver for electrical loopback testing, providing an economical solution for R&D, production, and field analysis of QSFP+ ports. - Excellent Heat Dissipation — Packaged in an MSA compliant housing, this loopback module offers superior heat dissipation, crucial for maintaining stable operating temperatures during extended testing cycles. - Broad Compatibility & Reliability — Compatible with all QSFP+ ports, this module is ideal for testing various network equipment, ensuring accurate diagnostics and validation without compatibility restrictions. ## Key features - Professional 40G QSFP+ Loopback: QSFP+ MSA Compliant; Hot-pluggable MSA footprint; MSA compliant EEPROM; 0dBm (Attenuation), 0W (Power Consumption). - Cost-effective: The electrical loopback provides a cost-effective method for QSFP+ transceiver ports testing in host/system boards by substituting a full-featured 40Gbps QSFP+ transceiver. - Excellent Heatdissipation: Packaged in an MSA compliant housing, this QSFP+ loopback offers super good heatdissipation. - No Compatibility Restrictions: Compatible with all QSFP+ ports. Widely used in Switch/ NIC/ Router and other equipment testing, R&D validation, and field analysis. - What You Get: 10Gtek 40G QSFP+ Loopback x 1. Backed by 10Gtek 30 days Free-returned, 12-month free warranty, lifetime technical support, and friendly customer service. ## Why choose this product **Precision Network Diagnostics** — The 10Gtek 40G QSFP+ Loopback Module is engineered for precise electrical loopback testing of QSFP+ ports. Its MSA compliance and hot-pluggable design ensure seamless integration into your testing workflow. By substituting a full-featured transceiver, it offers a cost-effective and reliable method for validating switch, NIC, and router ports. This module is essential for R&D, production, and field analysis, guaranteeing accurate diagnostics and performance checks for your network infrastructure. **Ideal for Network Professionals** — This loopback is perfect for network engineers, IT professionals, and R&D teams who need to rigorously test QSFP+ ports. It's particularly useful for validating new hardware, troubleshooting network issues, or performing quality control in production environments. While it offers robust testing capabilities, users with extremely high-frequency testing requirements or those needing active signal regeneration might consider more advanced active transceivers. For standard port validation, this passive loopback is an efficient and effective choice. ## How to use 1. Locate the QSFP+ port on your network device (switch, NIC, router) that requires testing. Ensure the device is powered on and the port is accessible. — Identify the QSFP+ Port 2. Carefully insert the 10Gtek 40G QSFP+ Loopback Module into the identified QSFP+ port. It should fit snugly and securely, indicating a proper connection. — Insert the Loopback Module 3. Utilize your network device's built-in diagnostic tools or management software to test the port. The loopback module will simulate a connection, allowing you to verify port functionality and data integrity. — Perform Diagnostic Tests 4. Once testing is complete, carefully remove the loopback module from the port. Store it in a safe place to prevent damage and ensure its availability for future testing needs. — Remove and Store ## Product details | Field | Value | |---|---| | Recommended Uses | Board and System Level Testing, Test and Measurement, Switch and Router Chamber Testing, R&D Validation, Production Testing, Field Analysis | | Data Rate Support | 100Mbps to 40Gbps | | Brand | 10Gtek | | Model Number | CAB-QSFP-LB0-0(1pc) | | Product Type | QSFP+ Loopback Module | | Data Transfer Rate | 40 Gbps | | Connector Type | QSFP+ | | Form Factor | MSA Compliant, Hot-pluggable | | Attenuation | 0 dBm | | Power Consumption | 0 W | | Operating Temperature | 0°C to 80°C | | Material | MSA Compliant Housing | | Compatibility | All QSFP+ ports (Switches, NICs, Routers) | | Usage | Indoor | | Package Quantity | 1 | | Item Package Weight | 0.01 pounds | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How do I test QSFP+ ports with this module? Insert the 10Gtek 40G QSFP+ Loopback Module into the QSFP+ port you wish to test on your switch, NIC, or router. This provides an electrical loopback, allowing you to test the port's functionality and data integrity without needing a live network connection. It's a cost-effective method for R&D and production validation. ### Is this loopback module compatible with my network equipment? Yes, this 40G QSFP+ loopback module is MSA compliant and designed for compatibility with all QSFP+ ports found on switches, NICs, and routers. Its hot-pluggable MSA footprint ensures easy integration for testing purposes. ### What is the benefit of using a loopback module for testing? A loopback module allows for isolated port testing by creating an electrical loop. This bypasses the need for a full network connection, making it a cost-effective and efficient method for diagnosing port issues, validating hardware functionality, and performing self-tests on network equipment. ### Does this module require power or generate heat? No, this 40G QSFP+ loopback module has a power consumption of 0W and 0dBm attenuation. It does not require external power and is designed for excellent heat dissipation within its MSA compliant housing, operating between 0°C and 80°C. ### How can I buy an original 10Gtek 40G QSFP+ Loopback Module in India? You can purchase an original 10Gtek 40G QSFP+ Loopback Module directly from crowcrowcrow. We import exclusively from authorized US retailers, ensuring the product is factory-sealed and authentic. All customs duties and GST are included in the listed price, and delivery is via ExpressBox tracked shipping to your Indian pincode. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B08BRTSJ2L-0.webp 2. https://images.crowcrowcrow.com/B08BRTSJ2L-3.webp --- Source: https://crowcrowcrow.com/p/10gtek-40g-qsfp-loopback-module-port-testing-40gbase-passive-switch-nic-router/wjh1634 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 6-8 days. Prices are all-inclusive (duties + GST).