STARTECH PEXUSB3S25 2 Port PCI Express USB 3.0 Expansion Card
- 2x USB Ports
- USB 3.0
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Two-port QSFP adapter delivering 10 Gbps or 40 Gbps InfiniBand connectivity over PCI Express x8 for high-performance servers
The HP 544 is a dual-port QSFP network adapter that delivers 10 or 40 Gbps InfiniBand connectivity over a PCI Express x8 slot. It is built for HP servers that need low-latency, high-throughput links in compute clusters and data-intensive workloads. The card uses part numbers 764618-001, 764285-B21 and 764737-001.
This adapter fits HP server platforms that run InfiniBand FDR fabrics for parallel computing, storage clustering or high-performance messaging. Buyers who need Ethernet, Fibre Channel or single-port connectivity should look at a different adapter. It also does not support copper twinax or optical modules that are not qualified for the QSFP FDR interface.
Installation requires an available PCI Express x8 slot in a compatible HP server chassis. Without that slot the card cannot be fitted, so verify the server expansion layout before purchase. The 40 Gbps maximum data rate is only achieved when the slot and fabric both operate at FDR speed.
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| Product | |
|---|---|
| Product type | Adapter card |
| Ports & slots | |
| External USB ports | 2 Port |
The card is rated for a maximum data rate of 40 Gbps across its two QSFP ports and fits a PCI Express x8 slot.
Each of the two ports accepts a QSFP (Quad Small Form-factor Pluggable) module; choose InfiniBand FDR-compatible optics or direct-attach cables that match your link distance.
The adapter requires a compatible PCI Express x8 slot; an x4 slot will not provide the necessary lane count for the 40 Gbps InfiniBand FDR link.
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