What ports and speeds does the HPE JH391A provide?

JH391A features 48 fixed 1/10GBASE-T RJ45 ports for copper connectivity and 6 QSFP28 ports supporting 100GbE uplinks. All ports deliver wire-speed non-blocking performance with 2.56Tbps switching capacity and up to 1904 MPPS forwarding rate.

What is the switching performance and latency of JH391A?

Delivers 2.56Tbps full-duplex switching capacity and 1904 MPPS throughput. Latency is under 1µs for 10GbE 64-byte packets, enabling high-performance ToR deployments for low-latency server-to-server communication.

Does JH391A support network virtualization features?

Yes, includes hardware VXLAN L2/L3 gateway for up to 4K tunnels, OVSDB for dynamic management, and jumbo frames up to 10,000 bytes. Ideal for overlay networks in virtualized data centers with FlexFabric Network Analytics.

What management and resiliency options are available?

Runs Comware 7 OS with IRF stacking (<50ms convergence, up to 9 units, 88% management simplification), ISSU for hitless updates, and no port activation licenses required. All ports active out-of-box.

What are the physical dimensions and power requirements?

1RU form factor: 4.36 x 44 x 46 cm, 11kg shipping weight. Dual hot-plug PSUs (100-240V AC), requires minimum 1 PSU and 2 fan trays for operation.

Is JH391A suitable for data center ToR deployments?

Optimized for ToR with high-density 10GbE server ports, 100GbE uplinks, low latency, and VXLAN. Suits large enterprise access/aggregation or medium core layers for converged Ethernet/storage traffic.

JH391A - HPE 5940 48XGT 6QSFP28 Switch Switch

Name: JH391A - HPE 5940 48XGT 6QSFP28 Switch Switch
Brand: HPE
SKU: JH391A

JH391A - HPE 5940 48XGT 6QSFP28 Switch Switch | US IT Hardware

Product overview

The HPE FlexFabric 5940 48XGT 6QSFP28 Switch (JH391A) is a 1RU top-of-rack data center switch designed for high-performance server connectivity and Ethernet/storage convergence. It features 48 fixed 1/10GBASE-T RJ45 ports for flexible copper connectivity and 6 QSFP28 ports supporting 100GbE uplinks, delivering up to 2.56Tbps switching capacity and 1904 MPPS throughput with latency under 1µs for 10GbE packets. Powered by Comware 7 OS, it supports VXLAN for network virtualization (up to 4K tunnels), IRF stacking for simplified management (up to 9 units), and ISSU for zero-downtime updates. Ideal for large enterprise data centers at aggregation/server access layers or medium enterprise cores, it enables high-density 10/40/100GbE deployments with FlexFabric Network Analytics for microburst detection. Supports jumbo frames up to 10K bytes, IEEE 802.3ad LACP (128 groups), ARP proxy, and 120K IPv4/60K IPv6 routing entries.

2.56Tbps switching capacity supports demanding data center workloads.
48x 1/10GBASE-T ports enable flexible copper server connectivity.
6x QSFP28 100GbE uplinks provide high-speed spine aggregation.
<1µs 10GbE latency ensures low-delay east-west traffic handling.
VXLAN supports 4K tunnels for scalable network virtualization.
IRF stacking simplifies management across up to 9 switches.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	JH391A
Brand	HPE
Condition	New
OS	Comware 7 Network OS
Model	5940 48XGT 6QSFP28 Switch
VXLAN	L2/L3 gateway, up to 4K tunnels, OVSDB
IRF Stacking	<50ms convergence, up to 9 switches
Jumbo Frames	Up to 10,000 bytes
Product Line	FlexFabric 5940
Product Type	Layer 3 Ethernet Switch
Routing Table	120K IPv4 / 60K IPv6 entries

Compatible systems

Designed for HPE FlexNetwork data center fabrics; requires Comware 7, modular PSUs/fans.

HPE FlexFabric
Model: 5940 Series
Form factor: 1RU
Generation: Comware 7
Native integration within FlexNetwork architecture.

Best for

Data Center Top-of-Rack
High-density 10GbE server connectivity with 100GbE uplinks for east-west traffic in large-scale clusters.
Aggregation Layer
40/100GbE spine connectivity for enterprise data centers requiring low-latency L3 routing.
Server Access
Copper 1/10GBASE-T ports for flexible direct server attachments without transceivers.
Network Virtualization
VXLAN L2/L3 gateway supporting 4K tunnels for overlay networks in virtualized environments.
Storage Convergence
High-performance Ethernet for unified storage traffic with jumbo frames up to 10K bytes.
Medium Enterprise Core
IRF stacking and Comware 7 for resilient core switching with simplified management.

Details

Shipping, warranty & returns

Customer reviews

No reviews yet — be the first to review this part.

Latency	<1 µs (10GbE, 64-byte packets)
Forwarding Rate	1904 MPPS
Switching Capacity	2.56 Tbps full duplex

Fans	Hot-plug trays; min 2 required
Weight	11 kg (shipping)
Dimensions	4.36 x 44 x 46 cm (H x W x D)
Form Factor	1U / 1RU rack-mount

HPE 5940 48XGT 6QSFP28 Switch Switch

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Network & Communication

Power Consumption

Physical Characteristics

Interface/Ports

Frequently asked questions