QSFP-40G-SR4 Cisco Transceiver Module
If you need a large quantity of QSFP-40G-SR4 product - call us at +1 (718) 766 5269 or request a quote at live chat and our sales manager will contact you shortly.
Looking for assistance? Connect with one of our experts
FREE Shipping. We are accepting NET 30 Days Purchase Orders. Get a decision in seconds, without affecting your credit.

QSFP-40G-SR4 Cisco 40GBASE SR4 QSFP Transceiver Module New

Availability: In Stock
Part Number#: QSFP-40G-SR4
List Price was: $550.00
Your Price:
You Save: $407.00 (74% off)

3% Discount on Checkout

Short Description:
QSFP-40G-SR4 40GBASE SR4 Quad Small Form-Factor Pluggable (QSFP) Multi Mode Fiber 150m 850nm MPO Connector Quad Small Form-Factor Pluggable Plus (QSFP+) Transceiver Module | Made by Cisco | New Factory Sealed
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Main Specifications of QSFP Transceiver

The main specifications of the Cisco QSFP-40G-SR4 transceiver module include:

  1. Data rate: 40 Gbps
  2. Wavelength: 850 nm
  3. Fiber type: Multi-mode (MMF)
  4. Distance: 100 meters
  5. Connector type: MPO
  6. Power consumption: < 2.5 W
  7. Temperature range: 0 to 70 degrees Celsius
  8. Operating humidity: 10 to 90% non-condensing
  9. Dimensions: 14.5 x 21.6 x 5.7 mm
  10. Compliance: IEEE 802.3ba 40GBASE SR4 standard, MSA (Multi-Source Agreement) standards
  11. RoHS compliant

Additionally, it has a hot-pluggable QSFP form factor and supports Digital Optical Monitoring (DOM) for real-time monitoring of transceiver parameters such as optical output power, optical input power, temperature, and laser bias current.


The Cisco QSFP-40G-SR4 transceiver module is designed to provide high-reliability in network environments. Some of the features that contribute to this include:

  • Quality assurance: The module undergoes rigorous testing to ensure it meets Cisco's high standards for quality and reliability, which helps to minimize the likelihood of failures.
  • Digital Optical Monitoring (DOM): The module supports DOM, which allows network administrators to monitor the real-time optical parameters of the transceiver such as optical output power, optical input power, temperature, and laser bias current, allowing them to detect and diagnose issues before they cause disruptions.
  • Compliance: This product transceiver is compliant with IEEE 802.3ba 40GBASE SR4 standard and MSA standards, which ensures compatibility with other devices and network infrastructure. This ensures that the module will work seamlessly with other network components and will not be affected by issues that may be caused by non-compliant equipment.
  • Robustness: The transceiver module is designed to withstand harsh conditions such as high temperatures, humidity, and electromagnetic interference (EMI), which helps to minimize the likelihood of failures caused by environmental factors.
  • Energy-efficient: The transceiver module supports Cisco EnergyWise technology, which allows network administrators to monitor and manage the power consumption of network devices to reduce energy costs. This helps to reduce the risk of power-related failures.
  • Support and warranty: The module is backed by Cisco's support and warranty, which provides quick and easy access to technical support and repair services in case of a failure.

All these features together help to ensure that the Cisco part is a high-reliability module that can operate seamlessly and stably in different types of network environments.

Compliant Standards

The QSFP-40G-SR4 is a Cisco 40GBASE SR4 QSFP (quad small form-factor pluggable) transceiver module. It is compliant with a number of industry standards, including:

  • IEEE 802.3ba: This is the standard for 40 Gigabit Ethernet, which defines the physical layer specifications for 40 Gb/s Ethernet operation over various types of optical fiber and copper cables.
  • InfiniBand Trade Association (IBTA) SDR, DDR, and QDR: These standards define the specifications for InfiniBand, a high-performance, switched fabric interconnect technology used in data centers and high-performance computing environments.
  • Fibre Channel FC-PI-4: This standard defines the specifications for the Fibre Channel protocol, which is used to provide high-speed data transfer over Fibre Channel fabrics in storage area networks (SANs).
  • SFF-8436: This is the industry standard for the quad small form-factor pluggable (QSFP) transceiver.

The QSFP-40G-SR4 is compliant with these standards, which means it can be used in networks and devices that are designed to work with these standards, and it will provide the expected level of performance and functionality.

Main Information about this Cisco QSFP-40G-SR4

  • Manufacturer: Cisco
  • Model Number or SKU# QSFP-40G-SR4
  • Product Name: QSFP-40G-SR4 QSFP+ Module
  • Product Type: QSFP+ Transceiver Module

Performance of Transceiver Module

Interfaces / Ports for 40GBASE QSFP Transceiver

  • Interfaces/Ports 1 x 40GBase-SR4
  • Interfaces/Ports Details 1 x MPO 40GBase-SR4 Network

Management & Protocols

  • IEEE 802.3ba, QSFP+ MSA, SFF-8436,SFF-8636, Infiniband 40G QDR


  • Cisco Nexus 3064 Switch
  • MSA Compliant
  • Green Compliant: Yes
  • Green Compliance Certificate/Authority: RoHS-6

Dimensions & Weight

  • Form Factor: Hot-swappable
  • Height: 0.5 Inch
  • Width: 0.7 Inch
  • Depth: 2.9 Inch
  • Weight: 3.53 oz
Product Condition:
New Retail Factory Sealed
Warranty provided by ALLHDD.COM:
90 Days

Here, you can check more available conditions of your desired product QSFP-40G-SR4 at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


Please choose your location for calculate shipping cost.


ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
Final Sale items are non-returnable/refundable in any situation. Any question? please ask our team before the shipment.

Important notes:

We can provide additional warranty service/support for any product you purchase from us if you need additional warranty coverage before finalizing the order from ALLHDD.Com. You need to ask in live chat/help or call us for more information.

Individual product warranty mentioned on each item product description page/detail page.

Free Technical support on purchased items, our expert consultancy over the phone, by email, by live chat, or by remote login.


Shipping Options and Estimated Delivery Time

UPS Shipping Options:

FREE UPS® Ground (Free shipping to all orders for 48 states!)
Estimated delivery time: 4-7 business days

UPS 3 Day Select®
Estimated delivery time: 3 business days

UPS 2nd Day Air®
Estimated delivery time: 1-2 business days, Delivery by 10:30 AM or 2:00 PM

UPS Next Day Air® Standard Overnight
Estimated delivery time: Overnight 2-5 PM, Standard Overnight Delivery.

UPS Next Day Air® - Priority Overnight
Estimated delivery time: Overnight Delivery (Next Business Day) Delivery by 10:30 AM or 12:00 PM

UPS Next Day Air® First Overnight - Early A.M
Estimated delivery time: Overnight 8:00 AM, Early morning, overnight delivery for your time-critical shipments.

UPS® First Overnight - Saturday
Estimated delivery time: Overnight 8:30 AM – Saturday

FedEx Shipping Options:

FedEx Ground®
Estimated delivery time: (4–7 business days in the contiguous 48 states)
*For residential delivery via FedEx Ground use FedEx Home Delivery®
Estimated delivery time: 4−7 business days, based on the distance to the destination.

FedEx Express Saver®
Estimated delivery time: 3 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states (except Hawaii and Alaska)

FedEx 2Day®
Estimated delivery time: 2 business days (by 4:30 PM to U.S. businesses; by 8:00 PM to residences)
Available throughout all 50 states

FedEx Standard Overnight®
Estimated delivery time: Next-business-day (by 4:30 PM to U.S. businesses and by 8:00 PM to residences)
Available throughout all 50 states (Hawaii is outbound only)

FedEx Priority Overnight®
Estimated delivery time: Next-business-day (by 10:30 PM to U.S. businesses, noon to most residences)
Available throughout all 50 states

FedEx First Overnight®
Estimated delivery time: Next-business-day (by 8:30 or 9 AM to most areas)
Available throughout all 50 states

Worldwide Shipping Options:

UPS®/FedEx® International Economy

Estimated delivery time: 4-7 business days

UPS®/FedEx® International Priority

Estimated delivery time: 2-4 business days

UPS®/FedEx® Ground Shipping Canada

Estimated delivery time: 5-8 business days

Important notes:

  • The processing of orders with Ground Shipping can take up to 24-48 hours. But we try to process all orders the same day.
  • We are not responsible for weather problems that may affect the delivery of goods by carriers. We cannot guarantee the exact delivery time, regardless of the carriers' claims.
  • If you have any specific delivery time requirements, please contact our customer support and someone from our customer service team will be able to help you.
  • You can estimate the shipping cost from the products detail page, also available on the checkout page
  • The shipping cost depends on box dimensions, weight, and zip/postal code
  • To get a FedEx® delivery service you need to mention it on the checkout page notebox.
  • For urgent shipments, please contact our customer service.
  • Shipping cut off 4:00 PM (Monday-Friday) and available blind drop shipment.