General Information HP J9728A
Switch -Type: 48 Ports
Enclosure Type: Rack-Mountable
Subtype: Gigabit Ethernet
Ports: 44 x 10/100/1000 + 4 x combo Gigabit SFP
Performance: Throughput : 130.9 Mpps Switching capacity : 176 Gbps
Routing Protocol: RIP, static IP routing
Remote Management Protocol: SNMP 1, RMON 1, Telnet, SNMP 3, SNMP 2c, TFTP, CLI
Authentication Method: RADIUS
Features: DoS attack prevention, IPv6 support, half duplex mode, full duplex mode, Class of Service (CoS)
Compliant Standards: IEEE 802.3, IEEE 802.3u, IEEE 802.1D, IEEE 802.1Q, IEEE 802.3ab, IEEE 802.1p, IEEE 802.3af, IEEE 802.3x, IEEE 802.3ad (LACP), IEEE 802.1w, IEEE 802.1s, IEEE 802.1v, IEEE 802.3az, IEEE 802.1AX
Processor: 1 x ARM : 625 MHz
RAM: 512 MB - SDRAM
Flash Memory: 1 GB
Expansion / Connectivity
Interfaces: 48 x 10Base-T/100Base-TX/1000Base-T - RJ-45 4 x SFP (mini-GBIC) 1 x management (RS-232) - RJ-45 1 x management (mini-USB) - Type B
Expansion Slots: 2 (total) / 2 (free) x expansion slot 1 (total) / 1 (free) x Stacking Module slot
Dimensions & Weight
Width: 17.4 inch
Depth: 13.2 inch
Height: 1.7 inch
Weight: 11.9 lbs
Min Operating Temperature: 32 °F
Max Operating Temperature: 131 °F
Humidity Range Operating: 15 - 95% (non-condensing)
Compliant Standards: C-Tick, GOST, CISPR 24, IEC 61000-3-2, IEC 61000-3-3, IEC 61000-4-11, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, EN55024, EN55022 Class A, FCC Part 15 B, ICES-003 Class A, RoHS, IEC 60825-1, EN 60825-1, CAN/CSA C22.2 No. 60950-1-07, IEC 60950-1 Second Edition, VCCI Class A
About Refurbished Products
Different Types of Switches
Networking switches vary widely depending on the number of devices they can support, network bandwidth/speed, and form factor. Switches for small offices will have anything between 4 and 8 ports and can fit on a desk. For larger office network implementation, switches may have 24 ports, 48 ports, 96 ports, and 128 ports and are rack-mountable between 1U and 4U. Switches vary depending on network speed and tasks to be supported such as 40/100 Gbps, 10 Gigabit (up to 10000 Mbps), and gigabit Ethernet (up to 1000 Mbps), power over ethernet and fast Ethernet (10/100 Mbps).
The unmanaged switches offer fixed configuration on a plug-and-play basis. It is the most basic switch and there are a few choices in the market. These switches are affordable, but the basic features make them inappropriate for enterprise applications.
The number of features and level of functionality improves with managed switches, making them ideal for enterprise and business applications. These switches are built with the command-line interface for ease of configuration. Equally, they support SNMP agents that come in handy when troubleshooting network issues.
The security on managed switches is better and will protect different types of traffic. Other features include support for virtual LANs, IP routing, and quality of service settings. Managed switches are more expensive compared to all other types of switches.
Smart switches refer to switches that possess more features than those of unmanaged switches but do not have the full features of managed switches. Smart switches are more cost-effective than managed switches.
Some of the limitations of the smart switches are a lack of telnet access support, Web GUIs, and a lack of many features for VLANs. They are affordable compared to a fully managed switch and are suitable for a smaller computer network.
Modular switches allow the addition of expansion modules as the network expands. The expansion modules allow for more networked devices but are application-specific. They may include wireless access points, firewalls, or network analysis tools. The flexibility of a modular networking switch comes at a higher cost.
For all types of networks and various network sizes, Cisco has reliable switches for your needs. You can pick by LAN types, Campus LAN Switches Access - Catalyst 9400 Series Switches, Catalyst 9300 Series Switches, Catalyst 9200 Series Switches, Catalyst 3850 Series Switches, Catalyst 3650 Series Switches, Catalyst 2960-X/XR Series Switches, Catalyst 2960-L Series Switches. The Campus LAN Switches Compact- Catalyst 3560-CX Series Switches, Catalyst 2960-CX Series Switches, Catalyst 2960-C Series Switches. The Campus LAN Switches-Core and Distribution Catalyst 9500 Series, Catalyst 9600 Series, Catalyst 3850 Fiber Series, Catalyst 6500 Series, Catalyst 6800 Series, and Catalyst 4500-X Series. However, for the Data Center, you can select the Nexus 9000 Series Switches, Nexus 5000 Series Switches, Nexus 3000 Series Switches, and Nexus 2000 Series Fabric Extenders. Anyone could choose the Data Center Switches with IOS Software- Catalyst 6500 Series Switches, Catalyst 4900 Series Switches, and Service Provider Switches-Aggregation Catalyst 6500 Series Switches, and Catalyst 4500 Series Switches. There are several featured switches for industrial level Ethernet 1000 Switches Industrial Ethernet 2000 Switches, Industrial Ethernet 3000 Switches, Industrial Ethernet 4000 Switches, and Industrial Ethernet 5000 Switches.
The HPE Data Center Switches Series provide high performance and secure connectivity for any connection and this series switch includes FlexFabric 5940 Switches, FlexFabric 5930 Switches, FlexFabric 5900 Switches, FlexFabric 5800 Switches, and FlexFabric 5700 Switches. The Aruba Network switches have better performance and reliability. These switches are easily scalable, secure, and feature multi-gigabit ports for high-speed mobile connectivity which includes Instant On 1930 Switches, 2530 Series Switches, 2920 Series Switches, 2930F Series Switches, 3810 Series Switches, 2540 Series Switches, 2930M Series Switches, 5400R Series Switches, 8320 Series Switches, Switch v3 Modules, Switch v2 Modules, Switches Transceivers, Switch Accessories, Office Connect Switches, 2615 Switches, 2620 Switches, 2915 Switches. The ProCurve series include10500 Switches, FlexNetwork 5130 EI Switches, FlexNetwork 5130 HI Switches, FlexNetwork 5120 SI Switches, 5500 EI Switches, 5500 HI Switches, Procurve Switch Transceivers, 5510 HI Switches, 3800 Switches, 3500 and 3500 yl Switches, 1920 Switches, 1900 Switches, 1810 Switches, 1620 Switches, 1410 Switches, 55xx Modules, 35xx Switch Modules.
We have a big range of network switches, including products from Linksys, TP-Link, Dell, Juniper Networks, Netgear, Cisco, and HPE for both managed and unmanaged options.