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QSFP-40G-CSR4= Cisco Original QSFP 4x10GBASE-SR Transceiver Module, MPO, 300M

Name: QSFP-40G-CSR4= Cisco Original QSFP 4x10GBASE-SR Transceiver Module, MPO, 300M
Brand: Cisco
SKU: QSFP-40G-CSR4
Price: 2299.00 USD
Availability: InStock

~~$7,664.00~~ $2,299.00 Sale

QSFP-40G-CSR4

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The Cisco 40GBASE QSFP (Quad Small Form-Factor Pluggable) portfolio delivers high-density, low-power 40 Gigabit Ethernet connectivity for data centers, high-performance computing networks, enterprise core and distribution layers, and service provider applications. These modules are hot-swappable and fully tested on Cisco QSFP 40G ports for reliable, high-speed performance.

Quick Specifications

Parameter	Details
Dimensions (mm)	13.5 x 18.4 x 72.4
Wavelength (nm)	850
Cable Type	Multimode Fiber (MMF)
Core Size (µm)	50
Modal Bandwidth (MHz·km)	OM2: 500, OM3: 2000, OM4: 4700
Maximum Distance	OM2: 82 m, OM3: 300 m, OM4: 400 m
Power Consumption	1.5 W
Pull Tab Color	Orange
Transmit Power (dBm per lane)	Max: 0.0 / Min: -7.3
Receive Power (dBm per lane)	Max: 0.0 / Min: -9.9
Transmit/Receive Wavelength (nm)	840–860
Operating Temperature	0 to 70°C (32 to 158°F)
Storage Temperature	-40 to 85°C (-40 to 185°F)

Key Features

Supports 40GBASE Ethernet over four-lane multimode fiber (CSR4, 850 nm)
Hot-swappable for seamless network upgrades and maintenance
Interoperable with IEEE-compliant 40GBASE interfaces
Certified and tested on Cisco 40G QSFP ports for quality and reliability
High-speed electrical interface compliant with IEEE 802.3ae / 802.3ba
QSFP form factor with I2C communication interface, compliant with SFF-8436 QSFP MSA

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

PROCUREMENT PROCESS

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.

Order Fulfillment Process

From Warehouse to Delivery: Ensuring Accuracy and Speed. Our order fulfillment process guarantees that your order is handled with the utmost care and efficiency.