QSFP28 to SFP28 Break-out Cable for Networking Equipment MikroTik XQ+BC0003-XS+

MikroTik XQ+BC0003-XS+ is a 3-meter DAC breakout cable with a QSFP28 connector on one end and four SFP28 connectors on the other, designed to connect multiple 25G devices to a single QSFP28 100G port on MikroTik switches and routers. It is deployed in data centers and high-speed infrastructures deploying CRS504, CCR2216, and similar equipment to maximize 25G connection density without additional ports or separate optical modules. A single QSFP28 100G port becomes four independent 25G connections, optimizing the use of available ports and reducing infrastructure costs.

The cable supports two operating modes: 100G split into 4×25G SFP28 for connecting four devices or servers with 25G ports, and 40G split into 4×10G SFP+ for compatibility with previous-generation equipment using 10G ports. SFP28 modules are integrated directly into the cable, eliminating the need for separate optical modules and simplifying installation to a maximum — direct connection with no additional configuration. The 3-meter length provides the necessary reach to connect to adjacent racks or equipment in the same server room without excessive cabling.

DAC (Direct Attach Cable) technology with active connectors ensures stable transmission and minimal latency compared to optical solutions, with low power consumption and without the need for separate optical transceivers at both ends. An MTBF of approximately 100,000 hours at 25°C confirms reliability for continuous operation in production environments. Compatibility with QSFP28 and SFP28 standards ensures interoperability with equipment from other manufacturers conforming to these standards.

Recommended for data centers connecting servers or storage with 25G ports to CRS504 switches or CCR2216 routers without consuming individual SFP28 ports, infrastructures transitioning from 10G to 25G where the same cable can be used in both modes, and any deployment where maximizing connection density per QSFP28 port and installation simplicity are priorities. Also suited for racks with multiple blade servers or storage arrays where breakout DAC 3m connection is the cleanest cable management solution.