- Name:
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QSFP-40G-CSR4
- Description:
- QSFP 4x10GBASE-SR Transceiver Module, MPO, 300M
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- Brand:
- Cisco
- Condition:
- GTIN:
- 821455070031
- Warranty:
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3 - List Price:
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$3,534.00
- Price:
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$636.00
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QSFP-40G-CSR4
QSFP 4x10GBASE-SR Transceiver Module, MPO, 300M
$636.00
44 in Global Warehouse
$636.00
82% off
TRUSTED, TRIED, PROVEN
QSFP-40G-CSR4 Overview
QSFP-40G-CSR4 is a QSFP optical transceiver designed for high-performance 40G data transmission over fiber links. Built to support multi-protocol operation including Ethernet and Fibre Channel, this module is optimized for short-range applications in data centers, enterprise networks, and telecom environments.
QSFP-40G-CSR4 features a compact QSFP form factor with precise physical dimensions for easy integration into existing systems. It employs LC connectors and is engineered for use with multi-mode fiber to deliver up to 100 meters of reliable transmission, satisfying the stringent requirements of modern high-speed connectivity deployments.
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QSFP-40G-CSR4 Specifications
| Product Type | Transceiver |
| Form Factor | QSFP |
| Data Rate | 40G |
| Connector Type | LC |
| Wavelength | 850nm |
| Transmission Distance | Short-Range |
| Fiber Type | Multi-mode |
| Max Distance | 100 meters |
| Supported Protocols | Ethernet, Fibre Channel |
| Network Interface | Fiber |
| Power Consumption | 3.0W |
| Operating Temperature | 0 to 70°C |
| Storage Temperature | -40 to 85°C |
| Input Voltage | 3.3V |
| Compatibility | Cisco |
| Product Name | QSFP-40G-CSR4 |
| Height | 0.66 inches |
| Width | 0.90 inches |
| Depth | 1.00 inches |
| Weight | 0.1 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Compatibility | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 10G | 10G | 40G | 1G | 10G |
| Depth | N/A | 2.76 inches | 1.00 inches | 3.56 inches | N/A |
| Fiber Type | Single-mode | Single-mode | Multi-mode | Single-mode | Single-mode |
| Form Factor | SFP+ | XFP | QSFP | SFP | SFP+ |
| Height | N/A | 0.33 inches | 0.66 inches | 0.65 inches | N/A |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 40 km | 80 km | 100 meters | 80 km | 35.8 km |
| Network Interface | Ethernet | Fiber | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | N/A | 3.5W | 3.0W | 1.5W | 3.5 W |
| Product Name | SFPP-10GE-ER | DWDM-XFP-30.33 | QSFP-40G-CSR4 | DWDM-SFP-5172-120-C | ONS-SC+10G-35.8-C |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet, Fibre Channel | Ethernet | Ethernet |
| Transmission Distance | Extended-Range | Long-Range | Short-Range | Long-Range | Long-Range |
| Wavelength | 1550 nm | 1550 nm | 850nm | 1558 nm | 1310 nm |
| Weight | N/A | 0.09 lbs | 0.1 lbs | 0.15 lbs | N/A |
| Width | N/A | 0.53 inches | 0.90 inches | 0.98 inches | N/A |
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Questions & Answers
Q
What is the maximum transmission distance of the QSFP-40G-CSR4 module?
A
The QSFP-40G-CSR4 supports up to 300 meters over OM3 multimode fiber using an MPO connector.
Q
Which data rate does the QSFP-40G-CSR4 support?
A
The QSFP-40G-CSR4 delivers 40 Gbps aggregate throughput, splitting into four independent 10 Gbps channels.
Q
What type of fiber cable is required for the QSFP-40G-CSR4?
A
The QSFP-40G-CSR4 requires OM3 or OM4 multimode fiber cables terminated with a 12-fiber MPO connector.
Q
Is the QSFP-40G-CSR4 hot-swappable?
A
Yes. The QSFP-40G-CSR4 is fully hot-swappable, enabling seamless insertion and removal without powering down your switch or server.
Q
What wavelength does the QSFP-40G-CSR4 operate on?
A
The QSFP-40G-CSR4 operates at a nominal laser wavelength of 850 nm for multimode fiber transmission.
Q
Does the QSFP-40G-CSR4 support Digital Diagnostics Monitoring (DDM)?
A
Yes. The module supports Digital Diagnostics Monitoring for real-time parameters like temperature, supply voltage and optical power.
Q
Which platforms are compatible with the QSFP-40G-CSR4?
A
The QSFP-40G-CSR4 is compatible with most major 40G network switches, routers and servers supporting IEEE 802.3ba standards.
Q
How much power does the QSFP-40G-CSR4 consume?
A
The QSFP-40G-CSR4 has a typical power consumption of 2.5 W, meeting industry efficiency requirements.
Q
Can the QSFP-40G-CSR4 be used for short-reach connections?
A
Yes. With support up to 300 m on OM3 fiber, the QSFP-40G-CSR4 excels in short-reach data center and enterprise links.
Q
What form factor is the QSFP-40G-CSR4 transceiver?
A
The QSFP-40G-CSR4 uses the QSFP+ (Quad Small Form-Factor Pluggable Plus) form factor, offering high density in 1U/2U racks.
Q
How do I install the QSFP-40G-CSR4 module?
A
To install, align the QSFP+ module with the port cage, gently push until it clicks, then connect the MPO fiber cable.
Q
Is the QSFP-40G-CSR4 RoHS compliant?
A
Yes. The QSFP-40G-CSR4 is fully RoHS compliant, ensuring it meets global environmental and safety regulations.
Q
What operating temperature range does the QSFP-40G-CSR4 support?
A
The QSFP-40G-CSR4 operates reliably between 0 °C and 70 °C ambient temperature.
Q
Can the QSFP-40G-CSR4 be used with breakout cables?
A
Yes. The QSFP-40G-CSR4 supports 1×100 G to 4×25 G and 1×40 G to 4×10 G breakout configurations with appropriate cables.
Q
What is the warranty period for the QSFP-40G-CSR4?
A
The QSFP-40G-CSR4 is backed by a standard one-year warranty, covering manufacturing defects and early failures.
Q
How do I check the QSFP-40G-CSR4 diagnostic information?
A
Use your switch’s CLI or SNMP interface to poll SFF-8472 registers and retrieve real-time diagnostics for the QSFP-40G-CSR4.
Q
Does the QSFP-40G-CSR4 support link aggregation?
A
Link aggregation is a function of the switch, not the module. The QSFP-40G-CSR4 supports aggregation when used in compatible switches.


