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HPE

HPE JL272A | 100G QSFP28 DAC | 100GBASE-CR4 | passive twinax | QSFP28–QSFP28 | 3m

SKU:JL272A

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Description

High-performance 100G QSFP28 direct-attach copper cable for short-reach, ultra‑low‑latency interconnects between switches, servers, and storage. Passive twinax design minimizes power and cost while delivering reliable 4x25G NRZ lanes over a single assembly. Ideal for top‑of‑rack to adjacent device links up to 3 meters.

Features

- Cost-effective 100G interconnect with no optics required
- Ultra-low latency passive copper design
- Tool-less QSFP28 latching for secure installation
- MSA and IEEE standards-based interoperability
- Low power draw from host and minimal heat output

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Is this cable active or passive?
A: It is a passive QSFP28 direct-attach copper (DAC) cable.

Q: Does this require separate transceivers?
A: No. QSFP28 terminations are integrated; plug directly into QSFP28 100G ports.

Q: Can this break out to 4x25G?
A: No. This is a straight QSFP28-to-QSFP28 1x100G assembly.

Q: Will it work with any QSFP28 100G port?
A: It is MSA-compliant for 100GBASE-CR4; ensure the host supports passive DAC at 3 m.

Q: Does it support monitoring?
A: Yes, basic EEPROM-based diagnostics/inventory per SFF-8636 are available from the host.

Technical Specifications

- Type: Passive direct-attach twinax copper (DAC) cable
- Data rate: 100 GbE (4x25G NRZ lanes)
- Form factor: QSFP28 on both ends
- Standard: 100GBASE-CR4; IEEE 802.3bj; SFF-8636 management
- Length: 3 meters
- Connectors: QSFP28 plug to QSFP28 plug
- Cable characteristic: Passive, near‑zero latency, low EMI
- Power: Negligible (passive, ~0 W) from the host
- Operating temperature: 0 to 70 °C (typical)
- Compliance: MSA-compliant; RoHS
- Compatibility: QSFP28 100G ports supporting passive CR4 DAC up to 3 m
- Breakout capability: No (straight 1x100G)

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