DAHUA SG4028  28-Port Managed Gigabit Switch
SKU: 33219139443

DAHUA SG4028 28-Port Managed Gigabit Switch

Sale price$347747.40 Regular price$386386.00
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Description

DAHUA SG4028 28-Port Managed Gigabit SwitchSG4028 28 Port Managed Gigabit Switch > Supports web management. > Supports STP and RSTP. > Supports manual aggregation and static LACP protocol aggregation. > 10 100 1000 Mbps self adaptive Ethernet port. > Highly integrated, it is exquisite, convenient and easy to use. Hardware Included Power Adapter Yes Ethernet Port 26 Optical Port 2 Ethernet Port Speed 10 100 1000 Mbps Optical Port Speed 1000 Mbps Description of Function Slots Port 1 26: 26 RJ45

SG4028

28-Port Managed Gigabit Switch

> Supports web management.
> Supports STP and RSTP.
> Supports manual aggregation and static LACP protocol aggregation.
> 10/100/1000 Mbps self-adaptive Ethernet port.
> Highly integrated, it is exquisite, convenient and easy to use.


Hardware

Included Power Adapter

Yes

Ethernet Port

26

Optical Port

2

Ethernet Port Speed

10/100/1000 Mbps

Optical Port Speed

1000 Mbps

Description of Function Slots

Port 1-26: 26 × RJ45 10/100/1000Mbps
Port 27-28: 2 × SFP 1000Mbps

Debugging

Console × 1

Reset Button

1

Power Supply

12 VDC

Operating Temperature

–10°C to +55°C (+14°F to +131°F)

Operating Humidity

10%–90% (RH)

Storage Temperature

–40°C to +75°C (–40°F to +167°F)

Storage Humidity

5%–95% (RH)

Power Consumption

Idling: ≤ 6 W;
Full load: 24 W

Performance

MTBF

467125.73 hours

Switching Capacity

56 Gbps

Packet Forwarding Rate

41.664 Mpps

Packet Buffer Size

4.1 Mbit

Jumbo Frame

10K Byte

MAC Table Size

8K

VLAN Number

4K

VLAN Interface

10

Communication Standard

IEEE 802.3x

Feature

Spanning Tree Protocol

STP, RSTP

VLAN Function

Yes

Link Aggregation

Static link aggregation; LACP

IEEE 802.3x Flow Control

IEEE 802.3X-based flow control (full-duplex)

Multicast

IGMP Snooping

DHCP Function

DHCP Client
DHCP-Server
DHCP-Snooping

Security

IEEE 802.1x

Equipment Management

WEB(http and https)

General

Statics Protection

Air discharge: 8 kV;
Contact discharge: 6 kV

Lighting Protection

Common mode: 2 kV;
Differential mode: 1 kV

Net Weight

1.57 kg (3.46 lb)

Gross Weight

2.25 kg (4.96 lb)

Product Dimensions

440 mm × 163.85 mm × 43.65 mm (17.32" × 6.45" × 1.71")

Packaging Dimensions

520 mm × 271 mm × 107 mm (20.47" × 10.67" × 4.21")

Certifications

CE

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 33219139443

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4.2 ★★★★★
Based on 1324 reviews
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Product Reviews
B
Verified Purchase
Bert
Port Orchard, US
★★★★★ 5
6 years and still going
Color: Blackout, Color: Blackout
Owned for 6 years and still going strong. Worn daily, including showers. The only time I take it off is to sleep. The face is scratched up and some buttons worn smooth (I wear it on the inside of my wrist). A few tiny cracks are beginning to form on one of the wristband pieces. Replaced the battery after about 3 years. It has three alarms and I use them regularly. You can choose to set each alarm for daily, weekdays, or weekends. I also use the timer a lot. Indiglo gets used every morning and many evenings. You can disable modes that you never use, so you only see what you want. I never use chronograph, so I have that disabled. Incredible watch.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
B
Verified Purchase
Ben
Louisville, US
★★★★★ 5
The watch of our era
Color: Blackout
Bought this ‘used’ but looks like only the box had some ‘damage’ but the watch was perfectly brand new. I’ve been wearing a timex Ironman watch since my tenth birthday. I’ve served in the Marine corps and wore one while on tour. I’ve worn them snorkeling and diving. I’m a mechanic and have worn it on my belt loop while working, and depending what I’m doing I’ll leave it on. I wear it in the shower, the pool, beach, kayaking, skydiving, mudding, surfing, fishing, shooting, and while relaxing in my recliner. I’ve only had one battery die, and it was easily replaced. This is the watch of our era. Stop reading this review and buy one!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 27, 2026
S
Verified Purchase
Starboard10
Los Angeles, US
★★★★★ 3
Very dim
Color: Black/Yellow Accent
This was a gift for our son. The watch functions well, but I returned it because the screen was very hard to read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
J
Verified Purchase
james bird
Alexandria, US
★★★★★ 5
Good watch
Color: G5885-silver-red
Great watch for the money, keeps better time than my ROLEX. Also very attractive.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
D
Verified Purchase
Don E.
Whiting, US
★★★★★ 5
Proud of my watch.
Color: G5885-silver-red, Color: G5885-silver-red
I purchased two of these and I am pleased so far.I was able to resize the band without any problems.They look good and I’ve received a few unsolicited compliments.IMHO they are well worth the 35 bucks or so I spent on them.Heck two of my buddies wearing r.l.x’s noticed them right off the bat.I just smiled and said thank you very much. P.s.I could buy and sell my two friends many times over so didn’t bother me when they ask me the price.Proud of the good watch for the money.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025

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