Arista

Arista CAB-Q-Q-100G-0.5 | 100GBASE-CR4 DAC | QSFP to QSFP | 0.5m | Passive Twinax

Arista CAB-Q-Q-100G-0.5 | 100GBASE-CR4 DAC | QSFP to QSFP | 0.5m | Passive Twinax

SKU:CAB-Q-Q-100G-0.5

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Description

Short-reach 100GBASE-CR4 direct attach copper cable for ultra-low-latency, zero-power interconnects within racks. QSFP to QSFP twinax, fixed 0.5 m length, ideal for top-of-rack server, storage, or switch links.

Features

- Zero-power, low-cost 100G interconnect
- Ultra-low latency copper link
- Fixed 0.5 m length to minimize cable clutter
- Hot-swappable QSFP ends
- Robust twinax construction for reliable in-rack connections

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 passive or active?
A: It is a passive twinax DAC and requires no external power.

Q: Does it support 4x25G breakout?
A: No. This is a straight QSFP to QSFP 100G cable. Use a QSFP28 to 4x SFP28 breakout DAC for 4x25G.

Q: Which ports is it compatible with?
A: QSFP/QSFP28 100G Ethernet ports that accept DAC cables and the corresponding module coding.

Q: Where should I use a 0.5 m DAC?
A: Short intra-rack links such as top-of-rack server or storage connections where minimal slack is desired.

Technical Specifications

- Standard: 100GBASE-CR4
- Data rate: 100 Gigabit Ethernet (100GbE)
- Form factor: QSFP to QSFP (QSFP28-compatible)
- Cable type: Passive Direct Attach Copper (Twinax)
- Length: 0.5 meters
- Power: 0 W (passive cable)
- Latency: Near-zero added latency
- Connection: Straight 100G to 100G (no breakout)
- Typical use: In-rack server-to-switch or switch stacking within 0.5 m

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