Detailed Specifications
HPE E7Y73A StoreFabric SN4000B 42-Port SAN Extension Switch
Overview
The HPE E7Y73A model of the StoreFabric SN4000B is a data-centre grade SAN extension switch designed for enterprise storage teams who manage Fibre Channel and Ethernet extension across sites and need sustained high throughput with low latency. It supports a mix of Fibre Channel, 1/10 GbE and 40 GbE interfaces and is engineered to link SAN fabrics across metro or WAN distances for backup, replication or migration usage. The chassis fits in a standard 19-inch rack and uses redundant hot-swappable power supplies and back-to-front airflow to suit dense data-centre racks. It is suited for centralised storage networks, disaster-recovery setups, and multi-site replication environments, and integrates with HPE's Fabric OS and SAN Network Advisor tools for unified SAN management.
Key Features
Supports up to 42 ports including high-density Fibre Channel and Ethernet.
Mix of 24 × 16 Gb Fibre Channel, 16 × 1/10 GbE and 2 × 40 GbE ports.
Aggregate full-duplex bandwidth up to 384-768 Gbps for heavy SAN extension traffic.
Feature set includes AES-GCM-256 encryption on ISLs and Fabric Vision monitoring.
Redundant hot-swappable power supplies and 2U rack form-factor for data-centre use.
Technical Specifications
| Specification | Value |
|---|
| Brand | HPE |
| Part Number | E7Y73A |
| Product Type | StoreFabric SN4000B SAN Extension Switch |
| Fibre Channel Ports | 24 × 16 Gbps FC ports |
| Ethernet Ports | 16 × 1/10 GbE ports |
| High-Speed Uplink Ports | 2 × 40 GbE QSFP+ |
| Aggregate Bandwidth | Full duplex up to 384-768 Gbps |
| Latency | Fabric latency around 700 ns |
| Jumbo Frame Support | Up to 9,000 bytes |
| Form Factor (H × W × D) | 3.2 in × 17.3 in × 24.0 in (2U rack) |
| Weight | Approximately 42.0 lbs |
| Airflow Direction | Back-to-front |
| Redundancy Features | Dual hot-pluggable AC power supplies (1+1) |
| Input Voltage | 85-264 VAC AC, 47-63 Hz |
| Operating Temperature | 0 °C to 40 °C (32 °F to 104 °F) |
| Management Interfaces | USB port, RJ-45 management port, serial RJ-45 port |
