The DM-317-0 is a loopback module in a QSFP form factor. The DM-317-0 provides 4 pairs of transmit data channels connected to the corresponding receive channels. These data channels can operate at transmissions speeds in excess of 10Gbps. In addition, this loopback records the number of cycles/insertions into a powered host and records that value at address 224-225 of the serial ID. The DM-317-0 provides a cost effective alternative to testing with optical links.

  • QSFP MSA compliant
  • Hot-pluggable footprint
  • Supports Digital Serial ID and User Memory
  • Robust Die Cast Housing
  • Small footprint to maximize port spacing
  • Spring Loaded Pull Tab that is easy to operate


Hot-Swap PluggableThe feature allows for system expansion without network interruption.

Open Architecture CompatibledataMate’s copper transceivers are interchangeable with optical SFP ports.

You Might Also Consider

EMI ReceptaclesMSA compliant to support all transceivers and provide EMI shielding.

Smart DACsA more cost-effective way to transfer data over shorter distances.

LoopbacksA versatile way to accurately test your data infrastructure.

Features & Options


dataMate® offers Restriction of Hazardous Substances (RoHS) compliance for our transceivers. See our Certifications for more details.

Biblioteca técnica

QSFP+ Loopback Data Sheet

[PDF 214 KB]

QSFP+ Loopback Engineering Drawing

[PDF 74.39 KB]

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