HPE JL557A Managed Switch
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HPE JL557A Aruba 2930F 48G PoE+ 4SFP 48 Ports Managed Switch New

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Part Number#: JL557A
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Short Description:
JL557A Power Over Ethernet Plus (PoE+) Switch 2930F 48G 48 Ports 4 Small Form-Factor Pluggable (SFP) Layer 3 Stackable Managed Rack-Mountable | Made by HPE | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

Product Overview of the HPE JL557A Switch

In the realm of networking infrastructure, the HPE JL557A Power Over Ethernet Plus (PoE+) Switch 2930F 48G stands out as a robust and versatile solution. This managed switch offers a plethora of features designed to meet the demands of modern businesses. From its Power Over Ethernet Plus capabilities to its Layer 3 functionality, this switch caters to a diverse range of networking requirements.

Power Over Ethernet Plus (PoE+)

  • Definition and Importance: Power Over Ethernet Plus, abbreviated as PoE+, is a technology that enables the transmission of both data and electrical power over the same Ethernet cable. This eliminates the need for separate power cables, streamlining the installation process and reducing clutter. The HPE JL557A Switch is equipped with PoE+, ensuring that connected devices such as IP cameras, VoIP phones, and wireless access points receive both data and power seamlessly.
  • Efficiency and Cost-Effectiveness: The implementation of PoE+ brings about increased efficiency and cost-effectiveness. With a single cable serving dual purposes, there is a reduction in the overall cabling infrastructure, leading to lower installation costs. Moreover, it simplifies maintenance and troubleshooting, as there's a unified approach to power and data management.

Switch Architecture

  • 2930F 48G: The switch boasts 48 Gigabit Ethernet ports, providing ample connectivity for a variety of devices within a network. These ports facilitate high-speed data transfer, ensuring that data-intensive tasks are executed with minimal latency.
  • Small Form-Factor Pluggable (SFP) Ports: In addition to the 48 Gigabit Ethernet ports, the HPE JL557A Switch is equipped with 4 Small Form-Factor Pluggable (SFP) ports. SFP ports enable the switch to connect to other networking devices over fiber-optic cables, extending the range of the network and providing flexibility in design.
  • Understanding Layer 3 Switching: Layer 3 switching involves the processing of data at the network layer of the OSI model. The HPE JL557A Switch, being Layer 3 capable, is equipped to make routing decisions, allowing for more efficient traffic management within the network.

Enhanced Network Performance

  • With Layer 3 capabilities, the switch can make intelligent decisions based on IP addresses, leading to enhanced network performance. This is particularly beneficial in large-scale networks where efficient routing is crucial for maintaining optimal data flow.
  • Scalability Through Stackability: The HPE JL557A Switch offers stackable capabilities, allowing multiple switches to be interconnected and managed as a single unit. This enhances scalability, making it easier for businesses to expand their networks as needed. The stackable design also improves resiliency by providing redundancy in case of a switch failure.
  • Rack-Mountable Convenience: The switch is designed to be rack-mountable, fitting seamlessly into standard network racks. This not only saves valuable floor space but also contributes to a neat and organized networking infrastructure. The rack-mountable design is particularly advantageous in data centers and server rooms where space optimization is critical.

Performance of Ethernet Switch

  • The JL557A HPE 48 Port Managed Switch is a high-performance network switch designed for enterprise and data center environments. It is a fully managed switch, meaning it can be configured and monitored remotely through a web interface or command-line interface.
  • One of the key performance features of the JL557A is its 48 Gigabit Ethernet ports, which provide fast and reliable connectivity for a large number of devices. The switch also supports 10 Gigabit Ethernet uplinks, allowing for even higher bandwidth and faster data transfer rates.

JL557A HPE 48 Port Managed Switch

The JL557A is a 48-port managed Ethernet switch from HPE (Hewlett Packard Enterprise). A managed switch allows for more control over the network configuration and traffic flow, compared to an unmanaged switch. It supports a variety of features such as Quality of Service (QoS), VLANs, Link Aggregation, and network monitoring. It also has a web-based interface for easy management and configuration. This switch is suitable for use in enterprise or data center environments.

Power and Environmental Requirements

The JL557A HPE 48 Port Managed Switch has specific power and environmental requirements that must be met in order to ensure proper operation.

  • The switch requires a power input of 100-240 VAC, 50-60 Hz.
  • The maximum power consumption is 150 watts.
  • It has a built-in power supply and does not require an external power supply.
  • The switch should be operated in a temperature range of 32°F to 104°F (0°C to 40°C).
  • The relative humidity should be between 5% and 95% non-condensing.
  • The switch should be operated in an environment that is free from dust, moisture, and other contaminants that may cause damage or affect performance.
  • The switch should be installed in a location that is protected from vibration and shock.
  • The switch should be installed in a location that is not exposed to direct sunlight or extreme temperatures.

It is important to note that these requirements must be met in order to ensure proper operation and to avoid damage to the switch. Failure to meet these requirements may result in poor performance or damage to the switch.

General Information about this HPE JL557A

  • Manufacturer: HPE
  • Part Number or SKU# JL557A
  • Product Type: Switch 48 Ports
  • Product Name: Networking Switch

Key Information

  • Enclosure Type: Rack-Mountable 1u
  • Subtype: Gigabit Ethernet
  • Ports: 48 X 10/100/1000 (Poe+) + 4 X Gigabit Sfp (Uplink)
  • Power Over Ethernet (Poe): Poe+

Performance & Capacity

  • Throughput: 77.4 Mpps
  • Switching Capacity: 104 Gbps
  • Latency (1 Gbps): 3.8 µs
  • Capacity: Jumbo Frame Size: 9220
  • Ipv4 Routing Table Entries: 10000
  • Ipv6 Routing Table Entries: 5000
  • Mac Address Table Size: 32k Entries
  • Routing Protocol : OSPF, Rip, Rip-1, Rip-2, Igmpv2, Igmp, Ospfv2, Static Ip Routing, Igmpv3, Ospfv3, Static Ipv4 Routing, Static Ipv6 Routing, Ripng, Mld, Cidr


  • Ram : 1 Gb DDR3 SD RAM
  • Flash Memory: 4 Gb

Expansions And Connectivity:

  • Interfaces : 48 X 1000base-T Rj-45 Poe+ - 740 W ¦ 4 X Gigabit Lan Sfp ¦ 1 X Serial (Console)
  • Expansion Slots: 1 (Total) / 1 (Free) X Expansion Slot
  • Installed Modules Qty (Max) : 0 (Installed) / 4 (Max)


  • Power Device: Internal Power Supply
  • Installed Qty: 1
  • Power Provided: 459 Watt
  • Voltage Required: Ac 120/230 V (50/60 Hz)
  • Power Consumption Operational: 48.6 Watt

In short, the HPE JL557A Power Over Ethernet Plus (PoE+) Switch 2930F 48G is a comprehensive networking solution that addresses the evolving needs of modern businesses. From its PoE+ capabilities to its Layer 3 functionality, and its stackable, rack-mountable design, this switch offers a versatile and efficient foundation for building a resilient and high-performance network infrastructure. Whether deployed in small office environments or large-scale enterprises, the HPE JL557A Switch proves to be a reliable and feature-rich choice for networking professionals.

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
30 Days

About New Bulk Pack Products

New Bulk Pack products come with clamshell boxes and do not have any manufacturer warranty. Many times manufacturers disassemble whole units to use parts or pulled from a new system. Typically, this product doesn't come with software or instructions unless indicated and no Manufacturer’s genuine warranty. You can take note these are not brand new products.

Here, you can check more available conditions of your desired product JL557A at a competitive price. We are trying our best to meet your needs on the enterprise-level computer, server, data centre, and networking hardware. You are welcome to ask our live chat or get live representative support over the phone.


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ALLHDD guarantees that the products will not have defects in material that will affect the product's functionality during the Standard Warranty Period. The warranty period starts when the merchandise/items from our warehouse.

What does ALLHDD.Com warranty cover?

30-days to 3 years warranty:

Replacement or refund. In the case of material defects, we will try to replace the product first. The product will be replaced before the expiration of the original warranty. For any failure of hardware, if we cannot process the replacement of the product(s)/model(s), we will refund the original selling/invoiced price. The shipping costs and sales tax, if any, are non-refundable. ALLHDD retains the right to decide whether the item(s) will process for replacement or refund.

What is not covered by our warranty?

The reason why our warranty does not cover any problem caused by the following conditions:

(a) misuse of hardware; accidental damage; carelessness product(s) damage; shock; temperature beyond the specification of any product; faulty installation; operation; modification of goods;

(b) any misuse outside the instructions in the user manual for any specific product;

(c) damaged caused by other hardware or equipment. The warranty will void if the item is returned with physical damage, damage to the retail box, removed from the box, counterfeit labels/labelled by them, or any modifications of internal and external covers. Data loss or damages to any other equipment we do not cover by our offered warranty.

What is the Manufacturer/Brand Warranty?

In general, a manufacturer's warranty service/support is a written guarantee to the buyer of a product. Its terms assure the replacement or repair of the product, if necessary, within a specified period after the purchase (2-5 years depending on the brand/manufacturer). It is typically included in the price of the product. Products are brand new and sealed and the original manufacturer box is complete with the Manufacturer's genuine warranty. For most of the brand new/retail products that come with the manual and box, exceptions may apply (i.e., Cisco, Juniper Networks).

For the server parts (i.e., Dell, HPE) to get Full coverage of the warranty server must have a full 3- 5 years warranty. However, ALLHDD.COM will cover the warranty duration if any Manufacturer doesn't support the advertised warranty and there is no refund for those.
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Important notes:

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