Innovation First, Inc. 1UCMA-137 1U Cable Management Arm 19" 28.5"-33" computer accessory
- Product Type:Cable…
- Panel Width:19" Rac…
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Mellanox Technologies
A 1.5 m passive copper cable with QSFP56 connectors delivers up to 200 Gb/s for InfiniBand HDR links
This 1.5 metre passive copper cable carries InfiniBand HDR traffic at up to 200 Gb/s through a QSFP56 interface. It is built for data-centre racks that need short-reach, high-density links between switches, adapters and storage nodes. The LSZH jacket meets low-smoke, zero-halogen safety requirements for enclosed cabinet runs.
Eight 50 Gb/s PAM4 lanes deliver the full HDR rate continuously across the 1.5 m reach without active equalisation. The 30 AWG conductors and 3.3 V single supply keep insertion loss low enough to maintain a bit error rate better than 1E-15 across the 0-70 °C operating range. Hot-pluggable SFF-8665 compliance means the link stays stable during live insertions and removals.
This passive DAC replaces costly active optical cables and transceivers when the connection stays within a single rack or adjacent racks. The jump is worth it when power budget, latency and per-port cost matter more than reach beyond a few metres. It is not for links that exceed the passive copper distance envelope or that require multimode or single-mode fibre media.
| Brand | Mellanox |
|---|---|
| Type | QSFP28 |
| Cat | QSFP28 |
| Connector A | 1 x QSFP28 Network QSFP28 Network |
| Connector B | 1 x QSFP28 Network QSFP28 - Network |
| Length | 4.92 ft. |
| Color | Black |
| Shipping weight | 0.23 kg |
| Package size | 203 × 102 × 51 mm |
Yes, the passive copper construction requires no external power and stays within a 0-70°C case temperature range while delivering up to 200Gb/s.
Each end needs a QSFP56 port; the cable plugs directly into those ports with no additional modules or adapters required.
The 30AWG gauge and 1.5m length keep the cable slim and manageable for tight rack routing next to other patch leads.
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