What is the switching capacity and throughput?

The switch provides 8.8 Gbps switching capacity and up to 6.6 Mpps throughput, suitable for handling traffic across 24 Fast Ethernet ports and 2 Gigabit uplinks with low latency under 5 µs at 1000 Mb.

How is the switch managed?

Management options include a limited command-line interface via serial port, intuitive web browser interface, SNMP Manager, and IEEE 802.3 Ethernet MIB, enabling easy configuration for small business networks.

What protocols are supported?

Supports IEEE 802.1AB LLDP for link discovery, Spanning Tree Protocol (STP and RSTP) for redundancy, and access control lists for security, ensuring reliable and protected Layer 2 operations.

What are the environmental specs?

Operating temperature ranges from 32°F to 113°F (0°C to 45°C), making it suitable for standard office environments. Front-panel LEDs provide at-a-glance status, activity, and speed monitoring.

What is the form factor?

It is a fixed-configuration desktop switch, ideal for space-constrained SMB setups like offices or branches, with solidly built design for high reliability and low power consumption.

JD990A - HP 1905-24 Switch 24 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Media Type: Auto-MDIX; Duplex:

Name: JD990A - HP 1905-24 Switch 24 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Media Type: Auto-MDIX; Duplex:
Brand: HP
SKU: JD990A
Price: 185 USD
Availability: InStock

JD990A - HP 1905-24 Switch 24 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Media Type: Auto-MDIX; Duplex: | US IT Hardware

Product overview

The HP 1905-24 Switch (JD990A) is a smart-managed fixed-configuration Fast Ethernet Layer 2 switch from the 1905 Switch Series, designed for small and medium businesses. It features 24 RJ-45 autosensing 10/100 ports with Auto-MDIX and half/full duplex support, plus 2 dual-personality 10/100/1000 ports and 1 serial console port, totaling 26 network ports. Switching capacity reaches 8.8 Gbps with throughput up to 6.6 Mpps. Management options include a limited CLI, web browser interface, SNMP, and IEEE 802.3 Ethernet MIB. Supported protocols encompass IEEE 802.1AB LLDP, STP/RSTP, and access control lists for security. Front-panel LEDs indicate status, activity, and speed. Operating temperature ranges from 32°F to 113°F (0°C to 45°C). As a desktop form factor, it suits branch offices, retail points, and secure workgroups requiring reliable Layer 2 connectivity without complexity.

24x 10/100 + 2x Gigabit ports, Auto-MDIX
8.8 Gbps switching, 6.6 Mpps throughput
Web/CLI/SNMP management, STP/RSTP/ACL
Front-panel LEDs for status/activity/speed
0-45°C operating temperature range
Layer 2 smart-managed fixed configuration

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 #	JD990A
Brand	HP
Condition	Refurbished
Model	1905-24 Switch
Status LEDs	Front-panel LEDs provide at-a-glance view of status, activity, speed
Product Line	1905 Switch Series
Product Type	smart-managed fixed-configuration Fast Ethernet Layer 2 switch
EMC Standards	FCC Class A; EN 55022/24, Class A; VCCI Class A; CISPR 22/24, Class A; AS/NZS 3548, Class A; ICES-003, Class A; CE Mark
Safety Standards	UL 60950-1; EN 60950-1; CSA 22.2 No. 60950-1
Supported Protocols	IEEE 802.1AB Link Layer Discovery Protocol (LLDP); Spanning Tree: STP and RSTP; Access control lists

Compatible systems

No specific system or OS compatibility lists found in sources

Best for

SMB Offices
Provides 24x 10/100 ports and 2x Gigabit uplinks for connecting workstations and servers in small offices, with 8.8 Gbps switching capacity ensuring smooth data flow.
Retail Environments
Supports access control lists and STP/RSTP for secure, loop-free networks in stores, using front-panel LEDs for quick status monitoring.
Branch Offices
Desktop form factor with web-based management and 6.6 Mpps throughput fits remote sites, operating reliably from 0°C to 45°C.
Workgroup Connectivity
LLDP and Auto-MDIX simplify deployment for workgroups, with total 26 ports handling mixed 10/100/1000 traffic efficiently.

Frequently asked questions

What ports does the HP 1905-24 Switch have?

Details

Shipping, warranty & returns

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Management Interface	limited command-line interface; Web browser; SNMP Manager; IEEE 802.3 Ethernet MIB

Throughput	up to 6.6 Mpps
Latency (100 Mb)	< 5 µs
Latency (1000 Mb)	< 5 µs
Switching Capacity	8.8 Gbps

Depth	7.13 in (18.1 cm)
Width	17.44 in (44.3 cm)
Height	1.73 in (4.4 cm)
Rack Units	1U
Form Factor	fixed-configuration desktop switch

Operating Temperature	32°F to 113°F (0°C to 45°C)

Interface/Ports

SFP Slots	2 dual-personality 10/100/1000 ports
Ethernet Ports	24 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Media Type: Auto-MDIX; Duplex: half or full; 2 RJ-45 dual-personality 10/100/1000 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX, IEEE 802.3ab Type 1000BASE-T); 1 RJ-45 serial console port
Total Number of Network Ports	26

HP 1905-24 Switch 24 RJ-45 autosensing 10/100 ports (IEEE 802.3 Type 10BASE-T, IEEE 802.3u Type 100BASE-TX); Media Type: Auto-MDIX; Duplex: