QSFP28 Cage 2x2-A0 WITH OUTER LIGHT PIPE
QSFP28 Cage 2x2-A0 Description
49021-00XXX1 is shaped around a 2x2 stacked QSFP28 connector layout with 4 outer light pipes in a left-down arrangement, making front-panel visibility one of its main defining features. Instead of adding a heat sink, the cage uses its accessory space for light-pipe guidance across a four-position stacked array, which is more helpful when port-status readability matters across closely grouped openings.
Its 38 circuits per port and 0.8 mm pitch show that the part is built for dense QSFP28 integration rather than a simplified mechanical shell. For applications that want a four-position stacked cage with dedicated outer light-pipe coverage and a cleaner top structure without heat-sink hardware, this model is the more suitable choice.
QSFP28 Cage 2x2-A0 Specification
| Parameter | Specification |
|---|---|
| Model | 49021-00XXX1 |
| Product Name | QSFP28 2x2-A0 WITH OUTER LIGHT PIPE |
| Product Type | 2x2 Stacked QSFP28 Connector Cage |
| Number of Ports | 2x2 |
| Number of Lanes | 4 Lane/Port |
| Number of Circuits | 38 Circuits/Port |
| Data Rate | 28Gbps Max |
| Pitch | 0.8 mm |
| Dimensions | 73.2 x 38.8 x 25.4 mm |
| Depth | 73.2 mm |
| Width | 38.8 mm |
| Height | 25.4 mm |
| EMI Finger | Yes |
| Light Pipe | 4 LP, Left Down |
| Heat Sink | No |
| Mounting | Press Fit |
| Operating Temperature | -40°C to +85°C |
Quality Certification
Key Advantages of QSFP to RJ45 Connectivity
Built around a four-lane interface, QSFP-DD cage delivers higher aggregate bandwidth than single-lane pluggable formats and is widely used where uplink capacity, port efficiency, and dense high-speed connectivity matter most.
QSFP+ Cage Applications in High-Bandwidth Networks
QSFP+ cage is commonly used where multi-lane bandwidth is needed in a compact module format, especially in systems that rely on high-capacity uplinks, dense switching fabrics, and heavier east-west traffic.
Switch Uplinks and Aggregation Links
QSFP is widely used on uplink and aggregation ports where traffic from many lower-speed access ports must be concentrated into fewer higher-bandwidth interfaces.
Leaf-Spine and Data Center Fabrics
In data center switching architectures, QSFP fits naturally into fabric-facing connections that require higher throughput and efficient lane-based interconnect design.
High-Performance Storage and Backend Interconnects
QSFP cage is also suitable for backend fabrics that move large data sets between storage nodes, controllers, and high-throughput equipment where wider links are preferred.
HPC, AI, and Compute Clusters
Compute-heavy platforms such as HPC and AI clusters often need denser high-bandwidth node-to-node connectivity, making QSFP a practical option for multi-lane system interconnects.
