MikroTik Q+BC0003-S+ 40Gbps to 4x 10Gbps Brake-Out Cable - 3m
Gain the advantages of our latest 40 Gbps switch without the need to overhaul your entire network setup. Seamlessly connect your CRS326-24S+2Q+RM to 4 other 10G SFP+ devices with the integrated QSFP+ and SFP+ modules. The 3-meter cable provides sufficient length for most configurations.
Tech Specs
| Device Specifications | |
|---|---|
| Cable | |
| Product Code | Q+BC0003-S+ |
| Connector Type | QSFP+ to SFP+ |
| Minimum Bend Radius | 35 mm |
| Cable Length | 3 m |
| Temperature | 0°C .. +70°C |
| Max Data Rate | 40 Gbps |
| Wire | 30 AWG |
| Jacket Material | PVC |
FAQs
Q1: What is the Q+BC0003‑S+ used for?
A: It’s a passive direct‑attach copper (DAC) breakout cable that converts a single 40 Gbps QSFP+ port into four independent 10 Gbps SFP+ ports — useful for connecting one 40G port to up to four 10G devices without additional optics.
Q2: What are the main technical specifications of the cable?
A: Cable length is 3 metres, with a 40 Gbps aggregated data rate (4 × 10 Gbps). It uses AWG 30 twinax copper, with a minimum bend radius of ~35 mm, and supports standard ambient temperatures (0 °C to +70 °C).
Q3: In what scenarios is the Q+BC0003‑S+ most useful?
A: It’s perfect for short‑range, high‑speed connections — ideal for racks or adjacent racks, connecting switches or servers that only support 10 Gbps SFP+ ports, while leveraging a 40 Gbps backbone port.
Q4: What type of devices is this cable compatible with?
A: It works with any device that has a QSFP+ 40 Gbps port on one end and compatible 10 Gbps SFP+ interfaces on the other — especially useful when using a 40 Gbps‑capable switch and needing to link to multiple 10 Gbps-capable devices without buying individual SFP+ cables or modules.
Q5: What are the limitations or conditions to consider when using Q+BC0003‑S+?
A: Because it's a passive copper DAC, it’s suited for short distances (e.g. same rack or neighboring racks). Ambient temperature should stay within 0–70 °C. It’s not suitable for long-distance fiber connectivity — for long links, fiber transceivers and fiber cable would be required instead.