Wholesale carrier-grade routers QSFP-DD

Carrier-grade routers with QSFP-DD support offer high-density, 400G-capable, wholesale-ready solutions for data centers and service provider networks.Overview of QSFP-DD ModulesQSFP-DD (Quad Small Form-factor Pluggable Double Density) modules are high-speed optical transceivers designed for 400G Ethernet applications, supporting multiple line rates and interoperability standards such as OpenZR+, OpenROADM, and OIF agreements . They are hot-pluggable and backward-compatible with QSFP28 modules, making them ideal for high-density data center interconnects, metro/regional networks, and service provider edge deployments . Common variants include:SR8: Short-range, up to 100m on MMFDR4/FR4: Intermediate reach, 500m–2km on SMFLR4/LR8: Long-range, up to 10kmER4/ER8: Extended reach, up to 40km These modules use PAM4 modulation with 8 electrical channels (400GAUI-8) and support digital diagnostic monitoring (DDM) for operational reliability .Carrier-Grade Routers Supporting QSFP-DDHigh-performance routers designed for carrier-grade applications integrate QSFP-DD ports to handle ultra-high bandwidth and low-latency traffic. Examples include:UfiSpace S9710-76D: A 400G disaggregated open router suitable for core and edge networks. It can operate standalone or as part of a distributed disaggregated chassis (DDC), scaling up to 691Tbps. Features include Broadcom J2C+ chipset, 16GB deep buffering, 14.4Tbps switching capacity, and support for non-stop routing and fault monitoring, making it ideal for telecom and service provider networks .Acacia QSFP-DD-enabled solutions: These leverage Delphi DSP ASICs and silicon photonics for optimized co-packaged designs, supporting 800G data center interconnects and metro/regional Ethernet networks .Wholesale AvailabilitySeveral suppliers provide wholesale QSFP-DD modules and routers:Unitekfiber: Offers a wide range of MSA-compliant transceivers including 200G QSFP-DD and 400G QSFP-DD modules, engineered for low latency and high reliability in data centers and AI clusters .ETU-Link: Supplies 400G QSFP-DD SR8, DR4, LR4, and ER4 modules with hot-pluggable form factors, supporting both MMF and SMF applications .FS.com: Provides 400G OSFP/QSFP112/QSFP-DD modules with fast delivery, technical support, and warranties suitable for large-scale deployments .Key Considerations for Wholesale ProcurementCompatibility: Ensure QSFP-DD modules are compatible with your router hardware and support required line rates.Reach and Fiber Type: Select SR, DR, LR, or ER modules based on distance and fiber type (MMF or SMF).Power and Thermal Management: High-density 400G modules consume 8–12W; proper cooling is essential.Scalability: Disaggregated routers like the S9710-76D allow pay-as-you-grow scaling for core network capacities.Standards Compliance: Verify adherence to IEEE 802.3bs, QSFP-DD MSA, and CMIS standards for interoperability and future-proofing. Carrier-grade QSFP-DD routers and modules provide high-bandwidth, low-latency, and scalable solutions for wholesale deployment in data centers, telecom networks, and AI-driven infrastructures, ensuring both performance and operational efficiency.