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Cisco

Cisco QSFP-4X10G-AC10M | 40G→4x10G breakout | QSFP+ to 4x SFP+ | Active Copper | 40GBASE-CR4→10GBASE-CR | Reach 10 m | Connector: QSFP+↔4x SFP+

SKU:QSFP-4X10G-AC10M

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Description

QSFP+ to 4x SFP+ active copper breakout cable that splits a single 40G port into four independent 10G links. Active signal conditioning enables reliable 10 m reach over copper with low latency and no separate transceivers required. Ideal for top-of-rack fan-out and spine–leaf aggregation when the QSFP+ port supports 4x10G breakout.

Features

- Splits one 40G link into four 10G connections
- Active copper design for reliable 10 m reach
- Low latency, low power, no separate optics required
- Hot-swappable QSFP+ and SFP+ integrated ends
- Secure latching and durable construction for dense racks
- Standards-based CR4 breakout; verify device compatibility

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 an active copper breakout cable with built-in signal conditioning.

Q: Do I need separate transceivers?
A: No. The QSFP+ and SFP+ ends are integrated; no additional optics are needed.

Q: Will it work on any 40G QSFP+ port?
A: The QSFP+ port must support 4x10G breakout (fan-out) and the platform must accept the cable coding.

Q: What protocols are supported?
A: Standards-based 40/10 Gigabit Ethernet over CR4/CR. Check your platform for any protocol restrictions.

Q: Can I use fewer than four SFP+ legs?
A: Yes. Each leg is an independent 10G link once the port is configured for breakout.

Technical Specifications

- Interface: QSFP+ (40G) to 4x SFP+ (10G)
- Cable type: Active Copper (breakout)
- Data rate: 40GbE to 4x 10GbE
- Standards: 40GBASE-CR4 to 10GBASE-CR
- Length: 10 m
- Connector ends: QSFP+ plug to 4x SFP+ plugs (integrated)
- Power: Bus-powered active equalization
- Operation: Hot-swappable
- Compatibility: Requires QSFP+ port with 4x10G fan-out support
- Use cases: ToR breakout, spine–leaf, storage/host uplinks

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