Dell Q56DD-400G-SR8 – QSFP-DD SR8 Optical Transceiver

About Dell Q56DD-400G-SR8 QSFP-DD SR8 Optical Transceiver in Bangladesh

The Dell Q56DD-400G-SR8 is a high-speed 400Gbps optical transceiver designed for next-generation data center and high-performance Ethernet networking. Using the QSFP-DD form factor and SR8 parallel optical architecture, it provides high-bandwidth connectivity over multimode fiber for compatible 400GbE networking platforms.

The Q56DD-400G-SR8 uses eight optical lanes operating at approximately 50Gbps per lane with PAM4 modulation to provide an aggregate 400Gbps data rate. Operating at an 850nm wavelength over multimode fiber, it is designed for short-reach data center applications where high bandwidth and efficient switch-port density are important.

The transceiver uses a parallel-fiber MPO interface and is suitable for high-density switch-to-switch connections, spine-leaf architectures, server networking, data center interconnects, and other compatible 400GbE applications. Actual reach depends on the fiber type, optical budget, cabling, connected equipment, and installation conditions.

Dell Q56DD-400G-SR8 QSFP-DD SR8 Optical Transceiver Specifications & Overview

Overview

The Dell Q56DD-400G-SR8 delivers 400Gbps optical Ethernet connectivity in a compact QSFP-DD form factor. It is designed for high-density data center environments where large amounts of network traffic must be transported between switches, servers, and high-performance network fabrics.

The SR8 architecture uses eight parallel optical lanes, each operating at approximately 50Gbps using PAM4 modulation. This provides an aggregate 400Gbps bandwidth while maintaining an efficient pluggable form factor for high-density Ethernet switches and networking equipment.

Operating at 850nm over multimode fiber, the Q56DD-400G-SR8 is intended for short-reach optical connections. With compatible OM4 fiber, the module can support links of up to approximately 100 meters, making it well suited to data center rack-to-rack, switch-to-switch, and spine-leaf network connections.

The parallel optical architecture requires compatible MPO fiber cabling with correct polarity and lane configuration. Proper fiber infrastructure planning is therefore important when deploying SR8 optical modules.

Buy Dell Q56DD-400G-SR8 QSFP-DD SR8 Optical Transceiver in Bangladesh

Purchase the Dell Q56DD-400G-SR8 QSFP-DD SR8 Optical Transceiver from Datacom Technologies (BD). We supply Dell networking equipment, high-speed optical transceivers, Ethernet switches, routers, data center hardware, servers, storage, and fiber connectivity solutions with competitive pricing, technical consultation, deployment assistance, and nationwide delivery throughout Bangladesh.

Compatibility

• Compatible Dell 400GbE Networking Platforms
• Dell Ethernet Switches Supporting QSFP-DD
• 400GbE Data Center Switching Platforms
• Compatible QSFP-DD SR8 Optical Interfaces
• Multimode Fiber Network Infrastructure
• Compatible MPO-16 Fiber Cabling

Always verify the exact Dell part number, host switch or router model, firmware, supported optics list, port configuration, power requirements, optical specifications, connector type, and cabling requirements before deployment.

Applications

• 400GbE Data Center Networking
• Switch-to-Switch Connectivity
• Spine-to-Leaf Network Links
• Data Center Interconnects
• High-Performance Computing Networks
• AI and GPU Infrastructure
• Cloud Data Center Networking
• High-Capacity Network Aggregation
• Short-Reach Multimode Fiber Links

Benefits

• 400Gbps high-speed Ethernet connectivity
• High-density QSFP-DD form factor
• 8 × 50G parallel optical lane architecture
• PAM4 optical modulation
• 850nm multimode optical transmission
• Designed for short-reach data center applications
• Up to approximately 100m reach over OM4 fiber
• MPO-16 parallel-fiber interface
• Suitable for high-density 400GbE network fabrics
• Ideal for data center, AI, HPC, and cloud networking

Why Buy from Datacom Technologies (BD)?

Datacom Technologies (BD) supplies enterprise networking and data center products in Bangladesh, including Dell networking equipment, optical transceivers, high-speed Ethernet switches, routers, servers, storage, and fiber connectivity solutions. Customers can get competitive pricing, technical consultation, deployment assistance, and after-sales support.

• Call/WhatsApp: +8801748173213
• Email: sales@datacom.com.bd
• Alternative Email: datacomtechnologiesbd@gmail.com
• Office: Tropical Center, 218, Dr. Kudroti Khuda Road, New Elephant Road, New Elephant Road, Dhaka-1205, Bangladesh

Frequently Asked Questions (FAQ)

Q1: What is the data rate of the Dell Q56DD-400G-SR8?
The Q56DD-400G-SR8 is designed for 400Gbps Ethernet connectivity.

Q2: What does SR8 mean?
SR8 refers to a short-reach parallel optical architecture using eight optical lanes. In a 400G SR8 implementation, the lanes typically operate at approximately 50Gbps each.

Q3: What form factor does the Q56DD-400G-SR8 use?
It uses the QSFP-DD form factor, which provides high bandwidth and high front-panel port density.

Q4: What type of fiber does the 400G SR8 use?
The SR8 design is intended for multimode fiber (MMF).

Q5: What wavelength does the Q56DD-400G-SR8 use?
The transceiver operates at an 850nm optical wavelength.

Q6: What is the reach of the Dell Q56DD-400G-SR8?
The module can support up to approximately 100 meters over compatible OM4 multimode fiber. Actual performance depends on the complete optical link.

Q7: What connector does the Q56DD-400G-SR8 use?
The SR8 architecture uses a parallel-fiber MPO interface. The exact connector and polarity requirements should be verified against the Dell part number and cabling specification.

Q8: Can the Q56DD-400G-SR8 be used over single-mode fiber?
The SR8 optical design is intended for multimode fiber. For single-mode applications, a compatible 400GbE single-mode optical transceiver should be selected.

Q9: Is every QSFP-DD port compatible with the Q56DD-400G-SR8?
No. The host platform must support the required 400GbE optical module, electrical interface, power and thermal requirements, firmware, and transceiver coding. Always verify equipment compatibility before deployment.

Q10: Where can I buy the Dell Q56DD-400G-SR8 in Bangladesh?
You can contact Datacom Technologies (BD) for Dell high-speed optical transceivers with competitive pricing, technical consultation, and nationwide delivery.