QSFP-DD 400GBase SR BiDi Spotlight

Simple migration to 400G using existing fiber breakout infrastructure

GigaTech Products compatible solution for QSFP-DD BiDirectional Transceiver

GigaTech Products, a global leader in manufacturing and distribution of compatible optics and cables, is proud to announce the latest release in their ever growing library of QSFP-DD network solutions. The 400GBase QSFP-DD SR BiDi Optical Transceiver is compliant with QSFP-DD MSA standards and will meet or exceed the performance specifications of the OEM. Each item is coded to be compatible with the intended system and latest software release to ensure reliability.

GigaTech Products’ compatible solutions provide service providers migrating to 400G with an enhanced level of affordability, performance, flexibility, and a lifetime warranty, overcoming the limitations and cost challenges of BiDi QSFP-DD options and 400G cabling.


  • Hot-pluggable QSFP-DD footprint
  • MPO connector
  • PAM4 Channels
  • KP4 FEC Support
  • Built-in digital diagnostic function


  • IEEE 802.3bm
  • RoHS 2.0 Compliant


The GigaTech Products 400GBase QSFP-DD SR BiDi is a parallel Quad Small Form-factor Pluggable that supports 400G links and up to four 100G breakout link lengths of up to 100m over OM4 MMF. It is compliant with the IEEE 802.3bm protocol and 400GAUI-8/CEI-56G-VSR-PAM4 standards. The 400 Gigabit Ethernet signal is carried over four parallel pairs of fibers by two 50Gbps bidirectional wavelength per fiber. It can also be used as 4x100GE breakout to QSFP-100G-SR1.2 modules. FEC is performed on the host platform.


Data Center

Infiniband HDR

400G Ethernet

Example Charts & Diagrams

400G SR BD

MTP/MPO 400G Link

400G SR BD

The GigaTech Products QSFP-DD SR BD transceiver will operate with a QSFP-DD SR BD for 400G connectivity.

400G SR BD

MPO to LC Breakout 4x 100G Link

100G SR BD

The GigaTech Products QSFP-DD SR BD transceiver will operate with 4x QSFP28 SR BD in a 4x 100G breakout mode.

Data Center Topology with Leaf Spine Architecture



Never Sourced. Never Recycled.

All components in GigaTech Product optics are manufactured under the same roof and represent the gold standard for reliability and consistency in performance. This vertical manufacture chain allows GigaTech to avoid unnecessary variances in transceiver casing or laser quality often found with online resellers who source their components from an ever changing vendor list. The transceiver is guaranteed to be built from A-Stock never used components overseen by GigaTech Products,

Rigorous Testing & Standards Compliance

The quality and standards of our hardware is one the base foundations of GigaTech Products. All of our components comply with MSA (Multi-Source Agreement) output standards and, in many cases, excel beyond those certification standards. Every transceiver we produce is tested on active network devices to ensure they comply with OEM equipment and are verified to be plug-and-play and do not require work arounds.