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Cisco QSFP-40G-CSR4= 40GBASE QSFP Transceiver Module, MPO, 300m MMF
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The Cisco QSFP-40G-CSR4= is a 40GBASE QSFP transceiver module designed for high-density 40 Gigabit Ethernet connectivity in data centers and enterprise networks. It supports 4x10GBASE-SR operation over multimode fiber with MPO connector, delivering up to 300m reach on OM3 fiber.
Key Features
40GBASE Ethernet
Supports 40GBASE Ethernet over four-lane multimode fiber (CSR4, 850 nm).
Hot-Swappable
Hot-swappable for seamless network upgrades and maintenance.
IEEE Compliant
Interoperable with IEEE-compliant 40GBASE interfaces.
Cisco Certified
Certified and tested on Cisco 40G QSFP ports for quality and reliability.
Specifications
| Form Factor | QSFP |
| Data Rate | 40 Gbps |
| Wavelength | 850 nm |
| Cable Type | Multimode Fiber (MMF) |
| Connector | MPO |
| Maximum Distance | OM2: 82 m, OM3: 300 m, OM4: 400 m |
| Power Consumption | 1.5 W |
| Operating Temperature | 0 to 70°C |
Key Benefits
- High-density 40G connectivity for data center and enterprise networks.
- Low power consumption of 1.5W reduces operational costs.
- Hot-swappable design simplifies maintenance and upgrades.
- Fully compatible with Cisco QSFP ports for reliable performance.
Frequently Asked Questions About Product
If these questions do not dispel your doubts, please contact us
Where do your products come from?
All of our products from Cisco Disti,Cisco partner, Cisco distribution directly.
How to ship the goods?
Datadirect cooperation with FEDEX,UPS & DHL and air shipment. Orders can be tracked by express Tracking number. Air shipment will supply the B/L.
Can l use my own freight account to ship my order?
Sure, we can use your accounts to ship goods without any issue.
What's your warranty for the products you sell?
Please refer below our warranty terms.
https://www.datadirectglobal.com/pages/product-warranty-policy
Datadirect offers for all items on the website.
Cisco/Juniper:
1 year warranty for new licensed products; 3 months warranty for used, REF, etc.
Aruba:
Generally provide Limited Lifetime Warranty
PS: Limited Lifetime Warranty means the machine is damaged during normal use, datadirect can provide free warranty service. However, we cannot provide warranty for damage caused by human or violent factors.
If you need to apply for a product warranty, you need to send the defective product back to us (suzhou China). The shipping cost of the defective product and the shipping cost of the spare parts will be borne by datadirect.
The shipping cost for the return is: first receipt address to our warehouse. The shipping cost of the spare parts is from our warehouse to the first delivery address.
I want to buy a licence/service for a device, can I use it properly locally?
Fortinet, Meraki branded equipment licences purchased from us can be used globally, Cisco service needs to be confirmed by contacting us
How Hardware Procurement Works
A straightforward four-step process. No hidden costs, no ambiguous timelines. From your first inquiry to delivery, you know exactly what happens next.
Submit Your Requirement
Send us your hardware spec, model numbers, and quantity via email or WhatsApp. The more detail, the faster we can quote.
Receive a Detailed Quote
We respond within 24 hours with a complete quote - itemized pricing, lead time, and logistics estimate. No vague estimates.
Confirm and Pay
Approve the quote, complete payment or confirm agreed credit terms. We then place the order with our verified supply network.
Delivery and Handover
We manage logistics end-to-end and provide tracking. Delivery comes with full documentation and post-delivery support.
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From Warehouse to Delivery: Ensuring Accuracy and Speed. Our order fulfillment process guarantees that your order is handled with the utmost care and efficiency.

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