Skip to main content

Black Box Gigabit Managed Ethernet SFP Fiber Switch - 28-Port

Part #: 1-1590763

Black Box Gigabit Managed Ethernet SFP Fiber Switch - 28-Port

Part #: 1-1590763 MFG Part #: LGB5128A-R2 UPC #: 822088142034
$1,697.33 $1,268.78
Save $428.55
SPECIAL ORDER

0 Available

(as of May 8, 2026 2:27 AM) Refresh Inventory
FREE SHIPPING

Free shipping on most items when you spend $100

AUTHORIZED DEALER
AUTHORIZED DEALER
AUTHORIZED DEALER

AUTHORIZED DEALER

Protect your investment ()

About the Black Box Gigabit Managed Ethernet SFP Fiber Switch - 28-Port for Black Box LGB5100 LGB5128A-R2

View User Manual

This advanced, fully-manageable Layer 2 switch gives you networking versatility. It features 28 high-speed fiber ports: (4) 1-Gbps/10-Gbps SFP fiber ports, (20) 100-/1000-Mbps SFP fiber ports, and (4) dual-media 100-/1000-Mbps SFP/twisted-pair ports.

This all fiber switch gives you the flexibility to select a variety of ranges with SFP transceivers.

Advanced functions in an economical package.

This switch offers advanced switching and security features normally found in more expensive switches. You'll get extensive management capabilities, greater bandwidth control, and QoS for switching in VoIP and other real-time, high-performance applications.

Pack up the trunk.

To provide more bandwidth to a specific application or segment, combine ports using the switch's 802.3ad Link Aggregate Control Protocol (LACP) capabilities. With this bandwidth aggregation feature, the combined ports create a multilink trunk for load sharing. The switch supports 14 groups with 8 ports per group.

High-level service.

The switch offers extensive Quality of Service support including prioritization, classification, scheduling, rate limitations, and more. The switch also supports eight hardware queues.

Safe and secure.

Your network is safe with this switch. It also offers MAC address filtering and VLAN capabilities so you can segregate networks.

Multiple management options.

Monitor, configure, and control the switch via its RS-232 serial port, or through Ethernet using CLI or Web-based management.

Green

The SFP Gigabit/10-Gigabit Managed Fiber Switch Eco features IEEE 802.3az energy-efficient Ethernet, which scales down power consumption during periods of low data activity. This feature adds up to energy savings of up to 50%.

SFPs

For the SFP slots, order SFP modules, such as the 850-nm Multimode Gigabit SFP Module (LFP411) and 1310-nm Single-mode Gigabit SFP Module (LFP412). For information on SFP module compatibility, contact our FREE Tech Support)

This advanced, fully-manageable Layer 2 switch gives you networking versatility. It features 28 high-speed fiber ports: (4) 1-Gbps/10-Gbps SFP fiber ports, (20) 100-/1000-Mbps SFP fiber ports, and (4) dual-media 100-/1000-Mbps SFP/twisted-pair ports.

This all fiber switch gives you the flexibility to select a variety of ranges with SFP transceivers.

Advanced functions in an economical package.

This switch offers advanced switching and security features normally found in more expensive switches. You'll get extensive management capabilities, greater bandwidth control, and QoS for switching in VoIP and other real-time, high-performance applications.

Pack up the trunk.

To provide more bandwidth to a specific application or segment, combine ports using the switch's 802.3ad Link Aggregate Control Protocol (LACP) capabilities. With this bandwidth aggregation feature, the combined ports create a multilink trunk for load sharing. The switch supports 14 groups with 8 ports per group.

High-level service.

The switch offers extensive Quality of Service support including prioritization, classification, scheduling, rate limitations, and more. The switch also supports eight hardware queues.

Safe and secure.

Your network is safe with this switch. It also offers MAC address filtering and VLAN capabilities so you can segregate networks.

Multiple management options.

Monitor, configure, and control the switch via its RS-232 serial port, or through Ethernet using CLI or Web-based management.

Green

The SFP Gigabit/10-Gigabit Managed Fiber Switch Eco features IEEE 802.3az energy-efficient Ethernet, which scales down power consumption during periods of low data activity. This feature adds up to energy savings of up to 50%.

SFPs

For the SFP slots, order SFP modules, such as the 850-nm Multimode Gigabit SFP Module (LFP411) and 1310-nm Single-mode Gigabit SFP Module (LFP412). For information on SFP module compatibility, contact our FREE Tech Support)

Technical Specifications of the Black Box Gigabit Managed Ethernet SFP Fiber Switch - 28-Port for Black Box LGB5100 LGB5128A-R2

General Information


Manufacturer Black Box Corporation
Manufacturer Part Number LGB5128A-R2
Manufacturer Website Address http://www.blackbox.com
Brand Name Black Box
Product Series LGB5100
Product Model LGB5128A-R2
Product Name Gigabit Managed Ethernet SFP Fiber Switch - 28-Port
Product Type Ethernet Switch

Interfaces/Ports


Total Number of Network Ports 4
Uplink Port Yes
Modular Yes
Network (RJ-45) Yes
Port / Expansion Slot Details 4 x Gigabit Ethernet TP/SFP Combo

Media & Performance


Media Type Supported Optical FiberTwisted Pair
Ethernet Technology Gigabit Ethernet10 Gigabit Ethernet
Network Technology 10GBase-X1000Base-X10/100/1000Base-T

I/O Expansions


Expansion Slot Type SFPSFP+
Total Number of Expansion Slots 24.0
Shared SFP Slot Yes
Number of SFP Slots 20
Number of SFP+ Slots 4

Network & Communication


Layer Supported 2
Networking Standards IEEE 802.1pIEEE 802.1QIEEE 802.1abIEEE 802.1wIEEE 802.1DIEEE 802.3adIEEE 802.1xIEEE 802.1sIEEE 802.3xIEEE 802.3zIEEE 802.3agIEEE 802.3ahIEEE 802.3uIEEE 802.3azIEEE 802.3abIEEE 802.3ae

Management & Protocols


Manageable Yes

Power Description


Frequency 60 Hz50 Hz
Power Source Power Supply
Power Consumption 38.64 W

Physical Characteristics


Form Factor Rack-mountable
Height 1.7"
Width 17.4"
Depth 8.3"
Weight (Approximate) 6.80 lb

Miscellaneous


Package Contents
  • Gigabit Managed Ethernet SFP Fiber Switch - 28-Port
  • AC Power Cord
  • 1 x Terminal Block
  • 4 x Adhesive Rubber Feet
  • 1 x Quick Installation Guid
Green Compliant Yes
Country of Origin Taiwan
TAA Compliant Yes
Environmental Compliance Restriction of Hazardous Substances (RoHS)Waste Electrical and Electronic Equipment Directive (WEEE)

Warranty


Limited Warranty 1 Year






Ratings and Reviews

Do you own the Black Box Gigabit Managed Ethernet SFP Fiber Switch - 28-Port for Black Box LGB5100 LGB5128A-R2?
Be the first to write a review!
Displaying 1-10 of 70
Page size: