Cisco QSFP-DD Pluggable Open Line System (QDD
Learn more about the Cisco QSFP-DD Open Line System (QDD
SFP vs SFP+ vs QSFP vs QSFP28 vs QSFP-DD:
Compare SFP, SFP+, QSFP, QSFP28, and QSFP-DD by speed, lane count, compatibility, breakout options, power, and upgrade path.
QSFP-DD Compatible Switches: Complete 2025 Vendor Guide
Find which switches support QSFP-DD modules. Our 2025 guide covers Cisco, Arista, Juniper and NVIDIA platforms with backward compatibility tips.
SFP vs SFP+ vs QSFP vs QSFP28 vs QSFP-DD: Upgrade Guide
Compare SFP, SFP+, QSFP, QSFP28, and QSFP-DD by speed, lane count, compatibility, breakout options, power, and upgrade path.
Specification – QSFP-DD
July 11, 2019 – QSFP-DD Hardware Specification for QSFP DOUBLE DENSITY 8X PLUGGABLE TRANSCEIVER – Rev 5.0 May 8, 2019 – Common Management Interface Specification – Rev 4.0
Cisco QSFP-DD and OSFP 800G ZR/ZR+ Coherent Optics Modules
They expand Cisco routed optical networking applications to include 800G links and are compatible with Cisco and third-party 800G-capable routers, switches, and transponders with QSFP
Cisco QSFP-DD Pluggable Open Line System (QDD OLS) Data Sheet
Learn more about the Cisco QSFP-DD Open Line System (QDD OLS), a pluggable optical amplifier module that provides a simple yet powerful open line system solution in a pluggable form
QSFP-DD Series
QSFP-DD can enable up to 14.4 Tbps aggregate bandwidth in a single switch slot. QSFP-DD electrical interfaces will employ eight lanes that operate up to 25 Gbps NRZ modulation or 50 Gbps PAM4
Models, specifications, and compatibility
The 9300 32D and 9300S Switch Series will shutdown a port that may be exceeding the maximum temperature for a transceiver - this is to prevent damage to the transceiver and other components on
400G QSFP-DD Cable and Transceiver Modules Data Sheet
It provides a QSFP-DD-to-QSFP-DD copper direct-attach solution. They are suitable for very short links and offer a cost-effective way to establish a 400-Gigabit link between QSFP-400G ports of
QSFP-DD Connector System
QSFP-DD Interconnect System''s 8-lane electrical interface transmits 28G NRZ, 56G PAM-4 and 112G PAM-4, up to 200, 400 or 800 Gbps aggregate. Backwards compatible with QSFP.
Complete QSFP-DD Compatibility Guide for Data Centers
Complete QSFP-DD compatibility guide with switch matrix, firmware requirements, and MSA compliance. Verify module compatibility before you buy.
Telecom Racks & Cabinets
19-inch racks, wall-mount cabinets, open frames with high load capacity and seismic rating.
Outdoor Climate Cabinets
IP55/IP66 outdoor enclosures with integrated cooling/heating, -40°C to +55°C operation.
Smart PDUs & Power Distribution
Intelligent PDUs with remote monitoring, per-outlet switching, and environmental sensors.
Shelters & Network Cabinets
Prefabricated telecom shelters, emergency comms shelters, and network cabinets with cable management.