Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Brocade 40G-QSFP-ESR4 40Gb/s QSFP+ 300m 850nm MTP/MPO MMF Transceiver
- 40Gb/s data transfer rate
- QSFP+ transceiver module form factor
- Supports distances up to 300 meters
- Designed for multi-mode fiber (MMF) connections
- Utilizes MTP/MPO connector
- Operates at 850nm wavelength
- Ideal for data center interconnects
40G-QSFP-ESR4 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Product Type
- Transceiver Module
- Interface Type
- QSFP+
- Data Rate
- 40 Gb/s
- Standard
- 40GBASE-SR4 (implied by MMF, 850nm, MTP/MPO, and distance)
- Fiber Type
- Multi-Mode Fiber (MMF)
- Connector Type
- MTP/MPO
Product details
The Brocade 40G-QSFP-ESR4 is a 40Gb/s QSFP+ transceiver module designed for short-reach connections over multi-mode fiber. It supports distances up to 300 meters using an MTP/MPO connector.
Technical Information
| Product Type | Transceiver Module |
| Interface Type | QSFP+ |
| Data Rate | 40 Gb/s |
| Standard | 40GBASE-SR4 (implied by MMF, 850nm, MTP/MPO, and distance) |
Additional Specifications
| Fiber Type | Multi-Mode Fiber (MMF) |
| Connector Type | MTP/MPO |
| Wavelength | 850 nm |
| Max Distance | 300 m |
Description
The Brocade 40G-QSFP-ESR4 is a Quad Small Form-Factor Pluggable Plus (QSFP+) transceiver module, delivering high-density 40 Gigabit Ethernet connectivity. This module is specifically engineered for short-reach applications within data centers, such as connecting servers to top-of-rack switches or linking switches across rows. It leverages multi-mode fiber (MMF) optics to achieve its performance targets. The transceiver operates at a wavelength of 850nm and utilizes an MTP/MPO (Multi-fiber Termination Push-on/Mechanical Transfer) connector. The MTP/MPO connector is designed to accommodate multiple fiber strands within a single connector housing, which is standard for parallel optics like the 40GBASE-SR4 standard that this module likely adheres to. This allows for the aggregation of multiple 10Gb/s lanes to achieve the 40Gb/s aggregate bandwidth. With a maximum reach of 300 meters over OM3 multi-mode fiber, the 40G-QSFP-ESR4 is an ideal solution for intra-data center connectivity. Its QSFP+ form factor is compact and supports high port densities on networking equipment. As a hot-swappable module, it allows for easy installation and maintenance without interrupting network operations, making it a crucial component for modern, high-performance data center infrastructures.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for 40G-QSFP-ESR4.



