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Dependable SFP+ and CX4 connectivity for high-speed networking.
J9312A
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HP 10GbE 2-port SFP+/2-port CX4 yl Mod
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J9312A
- Description:
- HP 10GbE 2-port SFP+/2-port CX4 yl Mod
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J9312A Overview
J9312A delivers a robust, stackable switching architecture designed for enterprise networks, featuring flexible power options and an array of ports that include 10/100/1000 Ethernet interfaces and dedicated SFP uplink ports. Its rack-mount form factor supports efficient stacking and rapid scalability, ensuring that network growth is met with seamless integration and consistent performance.
J9312A is engineered for high-performance environments, offering energy-efficient operation and enhanced capability for POE+ applications. Ideal for campus, office, and data center deployments, this switch provides the necessary architecture and power management to support modern network demands with ease.
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J9312A Specifications
- Product Type
- Switch
- Power Source
- AC Power Supply
- Form Factor
- Rack-mount
- Number of Ethernet Ports
- 24–48 Ports
- Number of Downlink Ports
- 24 Ports
- Manageable
- Managed
- Ethernet Technology
- 10/100/1000
- Media Type Supported
- Twisted Pair
- Redundant Power Supply Supported
- No
- Uplink Configuration
- 1G
- IOS
- LAN Base
- SFP Ports
- 4 SFP Ports
- Memory
- 256 MB
- Rack Units
- 1 RU
- Interface Ports
- 10/100/1000
- Flash Memory
- 64 MB
- Port/Expansion Slot Details
- N/A
- POE Support
- POE+
- Depth
- 12 inches
- Layer Supported
- Layer 2
- Weight
- 15 lbs
- Width
- 17 inches
- Height
- 1 inches
- Switching Capacity
- 104 Gbps
- Power Consumption
- 65 W
- Switching Capacity with Stacking
- 208 Gbps
- Manufacturer Part Number
- J9312A
- Product Name
- J9312A Stackable Managed Switch
J9312A Use Case
Hybrid Data-Center Uplink for Virtualization and SAN Storage
In a mixed-fabric data center, the J9312A-HP provides two 10GbE SFP+ links to the core switch and two CX4 ports to legacy Fibre Channel storage arrays. This configuration delivers up to 40 Gbps aggregate bandwidth, eliminates I/O bottlenecks in virtualized clusters and accelerates SAN traffic by 35%, while protecting existing CX4 investments.
Low-Latency High-Performance Computing Cluster Interconnect
In an HPC environment, the J9312A-HP module uses dual CX4 direct-attach links between compute-node racks and two SFP+ uplinks to the aggregation switch. Achieving sub-2 µs latency and line-rate 10GbE throughput, it boosts MPI job completion by 25% and supports data-heavy simulations with predictable, ultra-low latency.
Enterprise Campus Backbone Upgrade and Aggregation
For a multi-building campus, the J9312A-HP delivers two 10GbE SFP+ fiber uplinks to the core and two CX4 copper links to legacy edge switches. This hybrid deployment increases backbone capacity by 4× over 1GbE, simplifies roll-out over existing CX4 cabling, and future-proofs the network for high-density Wi-Fi, VoIP and video-conferencing traffic.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| J9312A |  J8694A | |
|---|---|---|
| Depth | 12 inches | 14 inches |
| Ethernet Technology | 10/100/1000 | 10/100/1000 |
| Flash Memory | 64 MB | 256 MB |
| Form Factor | Rack-mount | Rack-mount |
| Height | 1 inches | 1.75 inches |
| IOS | LAN Base | IP Services |
| Interface Ports | 10/100/1000 | 10/100/1000 |
| Layer Supported | Layer 2 | Layer 2 / Layer 3 |
| Manageable | Managed | Managed |
| Manufacturer Part Number | J9312A | J8694A |
| Media Type Supported | Twisted Pair | Twisted Pair / Fiber |
| Memory | 256 MB | 512 MB |
| Number of Downlink Ports | 24 Ports | 24 Ports |
| Number of Ethernet Ports | 24–48 Ports | 24–48 Ports |
| POE Support | POE+ | POE+ |
| Port/Expansion Slot Details | N/A | 2 expansion slots |
| Power Consumption | 65 W | 55 W |
| Power Source | AC Power Supply | Redundant Power Supply / AC Power Supply |
| Product Name | J9312A Stackable Managed Switch | J8694A Enterprise Switch |
| Product Type | Switch | Switch |
| Rack Units | 1 RU | 1 RU |
| Redundant Power Supply Supported | No | Yes |
| SFP Ports | 4 SFP Ports | 4 SFP Ports |
| Switching Capacity | 104 Gbps | 128 Gbps |
| Switching Capacity with Stacking | 208 Gbps | 256 Gbps |
| Uplink Configuration | 1G | 1G / 10G |
| Weight | 15 lbs | 10 lbs |
| Width | 17 inches | 17.5 inches |
Reviews & Ratings
F
Furqan Aziz
4
Stable performance with minimal latency.
L
Luca Moretti
5
Easy integration into HP switching environment.
B
Bilal Younis
5
Handled traffic loads reliably.
P
Peter Lawson
4
Good enterprise networking option.
Questions & Answers
What is the HP J9312A 10GbE 2-port SFP+/2-port CX4 module?
The HP J9312A is a hot-pluggable 10 Gigabit Ethernet expansion module featuring two SFP+ ports and two CX4 ports for high-performance network connectivity.
Which HP switches are compatible with the J9312A module?
The J9312A is compatible with HP ProCurve and HPE 5400R, 8200 zl, 6600 and 6200 series switches that support optional 10GbE uplink modules.
How do I install the HP J9312A module?
To install, power off the switch, remove the blank panel, slide the J9312A into the uplink bay until it clicks, then power on the switch and verify port status.
What types of transceivers can I use with the J9312A SFP+ ports?
The J9312A SFP+ ports support HP-branded or compatible 10GBASE-SR, 10GBASE-LR, and direct-attach copper (DAC) transceivers.
What is the maximum cable distance supported on SFP+ and CX4 ports?
On SFP+, reach is up to 300 m over multimode fiber (10GBASE-SR) and 10 km over single-mode fiber (10GBASE-LR); CX4 supports up to 15 m of copper cabling.
Does the J9312A module work with both fiber and copper cabling?
Yes, the two SFP+ ports accept fiber or DAC cables, while the two CX4 ports provide copper connectivity for short-reach links.
What is the power consumption of the HP J9312A?
The J9312A consumes approximately 8 W at full load, subject to transceiver and environmental conditions.
What are the operating temperature and humidity ranges?
The module operates between 0°C and 55°C with 5–95% non-condensing relative humidity.
Is an additional software license required for the J9312A?
No additional license is required; the J9312A functions with the switch’s base firmware supporting 10GbE uplinks.
How does the J9312A improve network performance?
By enabling 10 GbE uplinks, the J9312A increases bandwidth, reduces latency, and enhances data-center aggregation and server connectivity.
What warranty does the HP J9312A module include?
The J9312A is backed by HPE’s limited lifetime warranty, covering defects in materials and workmanship with optional support upgrades.
How can I troubleshoot link issues on J9312A ports?
Verify cable type, transceiver compatibility, switch port configuration, and check LED status; consult switch logs for error counters and run diagnostics.
What do the LED indicators on the J9312A signify?
Green LED indicates link up at 10 GbE, amber shows link at lower speed or diagnostic fault, and off means no link or power.
Can the J9312A module be used in a stacked switch environment?
Yes, when installed in each switch’s uplink bay, the J9312A supports stacking and high-speed inter-switch links.
Where can I purchase genuine HP J9312A modules?
You can order genuine modules through HPE authorized resellers, the HPE online store, or certified distribution partners.
Are there environmentally friendly disposal guidelines for J9312A?
Yes, follow local electronic waste regulations or return the module to an HPE recycling program to ensure safe disposal.