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LGB4000 Series Gigabit Ethernet Switch - 5-Port

Gigabit Ethernet switch enables easy network expansion


27 In Stock
Extended Double Diamond™ Warranty Available (3 Additional Year)

*Required field

Product Features

  • Features five autosensing 10-/100-/1000-Mbps RJ45 ports.
  • Easy plug-and-play operation, unmanaged.
  • Fanless for silent operation.


This nimble little switch sets up a small Gigabit network in no time. Just plug and go, the switch does the work for you and figures out the speed, duplex, and wiring of attached devices. The Gigabit 5-Port Switch has an internal power supply, so there's no bulky transformer to plug in. Plus its fanless design means it's quiet enough for office use.

Tech Specs

Approvals CE, RoHS
Buffer 832 KB
Connectors (5) RJ-45
Dimensions 1.75"H x 9"W x 4.9"D (4.4 x 22.8 x 12.4 cm)
Environmental Operating humidity: 10 to 90% noncondensing;
Indicators LEDs: Per Unit: (1) Power; Per Port: (1) LINK/ACT
MAC Addresses 1K
Power Internal power supply: 100-240 VAC, 50-60 Hz, autosensing; 4 watts maximum
Standards IEEE 802.3 10BASE-T, IEEE 802.3u 100BASE-TX, IEEE 802.3ab 1000BASE-T, IEEE 802.3x full-duplex and flow control

* Technical specification weight is the unit weight. It is not the packaged shipping weight. For shipping weight, please contact Black Box customer service at 877-877-2269.


Double Diamond Warranty

Extended 1 Year Warranty Available

Protect your purchase with an additional 1 Year Double Diamond™ warranty!
Cost: $11.95

Extended 3 Years Warranty Available

Protect your purchase with an additional 3 Years Double Diamond™ warranty!
Cost: $23.90


Double Diamond™ Warranty (Standard)

Take the risk out of equipment purchases with the Double Diamond™ Warranty from Black Box Network Services.

The Double Diamond Warranty is our warranty that protects your Black Box® brand products* from accidental damage, including drops, water, and power surges.

The 5-Port Gigabit Ethernet Switch comes with a standard 1 Year Double Diamond™ Warranty (Standard) already included.

During the warranty period, Black Box Network Services will repair or replace your damaged equipment within one week of receipt at NO CHARGE!*

Plus, get an Extended Double Diamond Warranty.

You can also extend your warranty or protect a previously purchased Black Box® brand product** for an additional year—for only 10% of the purchase price! Or, extend your coverage for a full three years for only 20% of the purchase price!

Ordering an extended warranty is easy: When viewing a product in your shopping cart, just select the one or three years of additional coverage in the dropdown menu under “Warranty Options.” For details, contact Customer Service at 724-746-5500.

* Warranty subject to certain exclusions and limitations ** Certain products may not be eligible.

What’s more, we also have a 45-day return policy. Simply call Customer Service for a Return Authorization (RA) number, return your product in new condition and in the original package, and receive a full refund.