BlueOptics Extreme Networks 40G-DACP-QSFP4SFP3M BlueLAN QSFP DAC SC253501K3M30

This 3-meter breakout DAC from BlueOptics splits a single 40G QSFP+ port into four independent 10G SFP+ links, eliminating the need for separate transceivers and fibre patch cords. It is engineered as a drop-in equivalent for the Extreme Networks 40G-DACP-QSFP4SFP3M, so it works seamlessly in existing Extreme deployments without configuration changes. The passive copper design keeps power draw under 0.5W, making it one of the most energy-efficient ways to connect top-of-rack switches to servers or storage arrays.

Highlights

• 40 Gbps total bandwidth via QSFP+ to 4x SFP+ breakout
• Passive direct attach copper – no optics, no power-hungry transceivers
• 3-meter length ideal for intra-rack and adjacent-rack cabling
• 100-ohm impedance with PVC jacket for durability in data centre environments
• Compliant with SFF-8436 and SFF-8431, RoHS certified
• Operating range 0°C to 70°C for reliable performance under load

In daily use

In high-density racks, every watt and every centimetre counts. This cable replaces four separate 10G SFP+ copper cables and a QSFP+ to SFP+ adapter, reducing clutter and points of failure. Because it is passive, there is no firmware to update and no compatibility handshake to worry about – just plug it into an Extreme switch port and the four SFP+ ports on the other end light up. The 3-meter reach allows you to connect a leaf switch to four servers in the same rack or an adjacent rack without the cost and fragility of fibre. The PVC jacket resists abrasion and is easy to route through cable management arms, while the low power draw helps keep your PDU budget under control. For network engineers, it is a straightforward way to increase port density without replacing existing hardware.

Full specifications

• Connector A: QSFP+ (40G)
• Connector B: 4x SFP+ (10G each)
• Cable type: Passive Direct Attach Copper (DAC)
• Length: 3 meters
• Data rate: 40 Gbps aggregate (4x 10G)
• Impedance: 100 Ohm
• Jacket material: PVC
• Standards: SFF-8436, SFF-8431
• Protocol support: Ethernet, InfiniBand
• Power consumption: < 0.5W
• Operating temperature: 0°C to 70°C
• RoHS compliant: Yes
• Compatibility: Extreme Networks (equivalent to 40G-DACP-QSFP4SFP3M)

Final note

For Extreme Networks shops that need reliable 40G-to-10G fan-out without active electronics, this BlueOptics DAC is a cost-effective, plug-and-play solution that keeps your racks tidy and your power bill low.