What ports does the HPE 1820-48G switch provide?

48 x 10/100/1000Base-T RJ-45 auto-sensing Gigabit Ethernet ports plus 4 independent SFP slots for 100/1000 Mbps fiber or copper modules. All ports support full-duplex operation with MDI/MDIX auto-crossover for simplified cabling.

Is the switch fanless and suitable for offices?

Yes, the 1820-48G features a completely fanless design for silent operation, making it ideal for open office spaces, conference rooms, and desktop deployments while maintaining reliable thermal performance up to 40°C ambient.

What management capabilities are available?

Browser-based web GUI provides configuration of VLANs (256 max), QoS policies, RSTP, LACP trunking, IGMP Snooping, and port mirroring. SNMP v1/v2c monitoring and firmware updates are supported without requiring CLI expertise.

Does it support VLANs and network segmentation?

Supports up to 256 port-based and tagged VLANs per IEEE 802.1Q, enabling traffic isolation for guest networks, VoIP prioritization, and department separation to enhance security and performance in multi-user SMB environments.

What is the switching capacity and latency?

104 Gbps non-blocking switching fabric capacity with latency <7 µs at 100 Mbps and <5 µs at 1000 Mbps for 64-byte LIFO packets. Handles 16,000 MAC addresses and jumbo frames to 10,240 bytes for efficient bulk transfers.

Can it be rack-mounted or wall-mounted?

Yes, 1U 19-inch rack-mountable with included kit, plus supports wall-mounting or under-table/desktop placement using optional brackets. Flexible installation options fit diverse SMB physical environments.

J9981-61001 - HPE J9981-61001 1820-48G 48xGbE+4SFP Layer2 Switch

Name: HPE J9981-61001 1820-48G 48xGbE+4SFP Layer2 Switch
Brand: HPE
SKU: J9981-61001
Price: 105 USD
Availability: InStock

J9981-61001 - HPE J9981-61001 1820-48G 48xGbE+4SFP Layer2 Switch | US IT Hardware

Product overview

The HPE OfficeConnect 1820-48G Switch (J9981-61001) is a fixed-configuration, smart-managed Layer 2 Gigabit Ethernet switch designed for small and medium businesses requiring reliable entry-level networking. It features 48 x 10/100/1000Base-T RJ-45 ports and 4 independent SFP slots for fiber uplinks, delivering non-blocking wire-speed performance with 104 Gbps switching capacity. Powered by an ARM Cortex-A9 400 MHz processor with 128 MB SDRAM and 16 MB flash, it supports essential features including VLANs (up to 256), IGMP Snooping, Rapid Spanning Tree (RSTP), link aggregation (LACP), and DSCP QoS policies via an intuitive web-based GUI. The rack-mountable 1U form factor supports desktop, wall, or under-table installation and is fanless for silent office operation. Energy-efficient features include IEEE 802.3az EEE and idle-port power reduction. Latency is under 7 µs at 100 Mb and 5 µs at 1000 Mb for 64-byte packets. MAC address table holds 16,000 entries with jumbo frame support up to 10,240 bytes. Ideal for branch offices, retail environments, and small workgroups needing plug-and-play simplicity with customizable network segmentation and traffic prioritization. Provides robust connectivity for VoIP, IP surveillance, and wireless deployments without complex management overhead.

48x Gigabit + 4x SFP ports.
104Gbps switching, <5µs latency.
256 VLANs, IGMP, RSTP, QoS.
Fanless 1U rack/wall/desktop mount.
Web GUI management interface.
16K MAC, 10K jumbo frames.

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 #	J9981-61001
Brand	HPE
Condition	Refurbished
Features	IGMP Snooping ¦ RSTP ¦ LACP ¦ DSCP QoS ¦ EEE
Device Type	Switch - 48 Ports - L2 - Smart Managed - Fixed
VLAN Support	Up to 256 VLANs
Management Interface	Web GUI browser-based

Storage

Memory	128 MB SDRAM ¦ 16 MB Flash ¦ Packet Buffer: 1.5 MB
MAC Address Table	16,000 entries

Compatible systems

Standards-based Layer 2 switch compatible with any Gigabit Ethernet endpoints, SFP transceivers, and standard rack/wall installations. Web-managed for universal browser access.

HPE OfficeConnect
Model: 1820 Series
Form factor: 1U Rack/Desktop
Generation: Current
Native integration in HPE SMB networking
HPE Aruba Instant On
Model: AP22
Form factor: Access Point
Generation: Wi-Fi 6
Direct Ethernet connectivity
Generic IP Cameras
Model: Any GbE
Form factor: PoE not required
Generation: N/A
Standard 802.3ab compliance

Best for

Small Office Networks
Connecting desktops, printers, and VoIP phones in small offices using VLANs for guest/employee separation and QoS for voice prioritization with web-based management.
Retail Branch Connectivity
POS systems, IP cameras, and wireless APs in retail stores with IGMP Snooping for multicast video surveillance and RSTP for loop prevention.
Workgroup Switching

Details

Shipping, warranty & returns

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HPE J9981-61001 1820-48G 48xGbE+4SFP Layer2 Switch

Product overview

Featuring

Storage

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

Processor

Network & Communication

Power Consumption

Physical Characteristics

Environmental

Interface/Ports

Frequently asked questions

Latency	100 Mbps: <7 µs ¦ 1000 Mbps: <5 µs (64-byte LIFO)
Jumbo Frames	10,240 bytes
Switching Capacity	104 Gbps non-blocking