United StatesName:
Added to cart 28 times recently
In stock - Ready to Ship
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
QSFP-40G-CSR4-C
40GBASE-CSR4 QSFP+ MMF Module Cisco Compatible
TRUSTED, TRIED, PROVEN
Inventory Delivered By
& Verified By
Solutions Powered By
QSFP-40G-CSR4-C is a QSFP transceiver that supports a 40G data rate and is engineered for high-performance Ethernet applications in data centers, enterprise networks, and telecom environments. It features a compact form factor with physical dimensions compliant with industry standards, making it an efficient solution for bandwidth-intensive network interconnects.
QSFP-40G-CSR4-C employs LC duplex connectors and offers short-range transmission capabilities optimized for Ethernet protocols. This transceiver is designed to meet demanding use cases, including data center interconnects and high-speed enterprise applications, while ensuring reliability and ease of integration within Cisco-based network infrastructures.
QSFP-40G-CSR4-C price is is available on request. Get immediate quote.
Request bulk order quote for QSFP-40G-CSR4-C for additional pricing. Browse the full Cisco Compatible Qsfp+ series or explore all Orm products.
To get the detailed certification, please go to the Compliance Center.
 QSFP-40G-CSR4-C |  WSP-Q40GLR4L-C |  QSFP-40G-SR4-C |  QSFP-4X10G-LRL-S-C |  QSFP-40GE-LR4-C | |
|---|---|---|---|---|---|
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Form Factor | QSFP | QSFP+ | QSFP | QSFP | QSFP |
| Data Rate | 40G | 40G | 40G | 4x10G (40G) | 40G |
| Connector Type | LC | LC | MPO | LC | LC |
| Wavelength | N/A | 1310nm | 850nm | 1310 nm | 1310 nm |
| Transmission Distance | Short-Range | Long-Range | Short-Range | Long-Range | Long-Range |
| Fiber Type | N/A | Single-mode | Multi-mode | Single-mode | Single-mode |
| Max Distance | N/A | 10 km | 100m (OM3)/150m (OM4) | 10 km | 10 km |
| Supported Protocols | Ethernet | Ethernet | Ethernet | Ethernet | Ethernet |
| Network Interface | Ethernet | Fiber | Ethernet | Ethernet | Ethernet |
| Power Consumption | N/A | 6.5W | 4.2W | 3.0 W | 3.0 W |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Compatibility | Cisco | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista |
| Product Name | QSFP-40G-CSR4-C | WSP-Q40GLR4L-C 40G QSFP+ Long-Range Transceiver | QSFP-40G-SR4-C | QSFP-4X10G-LRL-S-C | QSFP-40GE-LR4-C |
| Height | N/A | 0.7 inches | N/A | 0.47 inches | 0.2 inches |
| Width | N/A | 0.9 inches | N/A | 0.94 inches | 0.55 inches |
| Depth | N/A | 1.2 inches | N/A | 1.5 inches | 0.375 inches |
| Weight | N/A | 0.12 lbs | N/A | 0.1 lbs | 0.15 lbs |
Flawless CSR4 performance. This module provides an extended reach over MMF that standard SR4 can't touch. Seamless recognition by our Cisco hardware. Excellent reliability.
Exceptional signal quality for extended MMF links. This 40G CSR4 transceiver is a dependable choice for our data center. Stable and high-performing hardware.
Consistent 40G throughput. This CSR4 module is built for professional environments. The extended reach is perfect for our larger data center halls. Highly recommended.
Reliable and high-quality 40G optic. It provides steady performance over extended MMF spans. Full Cisco compatibility ensured. Highly impressed with the value.
Professional grade 40G CSR4 transceiver. It delivers clear signals and strong power margins. An essential part of our high-density data center expansion.
The QSFP-40G-CSR4-C is a Cisco-compatible 40GBASE-CSR4 QSFP+ multimode fiber transceiver module designed for high-density data center and enterprise networks.
This module supports OM3 and OM4 multimode fiber (MMF) to deliver reliable 40 Gbps connectivity over short to mid-range distances.
On OM4 fiber, the QSFP-40G-CSR4-C can transmit up to 150 meters, and up to 100 meters on OM3 multimode fiber.
Yes. The QSFP-40G-CSR4-C is tested for full interoperability with Cisco Nexus, Catalyst, UCS, and other Cisco PoE switches.