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QSFP28 to Single Lane DAC
Provides a direct attach copper (DAC) solution that breaks out one QSFP28 port into a single SFP28 interface, enabling efficient 25G Ethernet connectivity for short-reach applications. -
QSFP28 Tx1/Rx1 to SFP28
Supports high-speed 25G signaling by linking transmit and receive lanes (Tx1/Rx1) from the QSFP28 side directly to the SFP28 interface, ensuring reliable single-lane data transmission. -
Up to 3m Reach
Offers a passive copper solution with up to 3 meters of reach, ideal for top-of-rack and short interconnects in high-density data center environments. -
Hot Pluggable
Fully hot pluggable, allowing quick installation and removal without shutting down or disrupting active systems, maximizing uptime and operational flexibility. -
Clean Installations
Designed for streamlined cable management, the compact DAC form factor enables tidy, clutter-free installations, improving airflow and maintainability within racks. -
Reduced Cable Infrastructure
Minimizes the need for transceivers and fiber optic cabling, offering a cost-effective and simplified alternative for short-distance high-speed interconnects. -
E-Temp Rated
Rated for operation in extended temperature (E-Temp) environments, ensuring reliable performance in more demanding thermal conditions such as outdoor cabinets or industrial deployments.
PRE-QSFP281SFP28-CUxxyyM
The PRE-QSFP281SFP28-CUxxyyM is a passive DAC breakout cable that connects a QSFP28 port to a single SFP28 interface, supporting 25G Ethernet over distances up to 3 meters for efficient, low-power Top of Rack connectivity in data centers.
QSFP28/1xSFP28, Passive DAC, Single Lane 25G, E-Temp

The PRE-QSFP281SFP28-CUxxyyM is a high-speed passive DAC breakout cable designed for Top of Rack (ToR) connectivity in modern data centers. It features a QSFP28 to 1x SFP28 configuration, supporting 25G single-lane Ethernet connections over short distances. Built to meet SFF-8432, SFF-8665, and SFF-8402 standards and compliant with IEEE P802.3bj and RoHS regulations, this cable delivers cost-effective, low-latency, and energy-efficient performance in high-density networking environments.
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Data Center
Ideal for high-performance data center environments, this DAC cable enables fast, reliable 25G connectivity between servers, switches, and storage, helping to meet growing bandwidth demands with low latency and energy efficiency. -
Top of Rack Connectivity
Optimized for Top of Rack (ToR) deployments, the cable provides short-reach, high-speed interconnects between ToR switches and server nodes, streamlining cabling and reducing complexity in dense rack configurations. -
SFF-8432/8665/8402
Compliant with industry-standard SFF-8432, SFF-8665, and SFF-8402 specifications, ensuring broad compatibility with networking equipment and consistent mechanical and electrical performance across systems. -
RoHS
Fully RoHS compliant, the cable meets international environmental standards by restricting hazardous substances, supporting sustainable IT infrastructure and global regulatory compliance. -
IEEE P802.3bj
Supports the IEEE P802.3bj standard, enabling 25G Ethernet over a single lane with forward error correction (FEC), ensuring high signal integrity and interoperability in modern Ethernet networks.