SKU: 58920591268

DAHUA S4220-16GT-190 20-Port Managed Desktop Gigabit Switch with 16-Port PoE

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Description

DAHUA S4220-16GT-190 20-Port Managed Desktop Gigabit Switch with 16-Port PoES4220 16GT 190 > Transmits data at a high speed through USB 3. 0. > Layer 2 network management PoE switch. > Supports web, and network management software based on SNMP. > Network redundancy: STP RSTP. > Supports PoE power consumption management, PoE power off management. > Supports IEEE802. 3af, IEEE802. 3at. > Port 1 and port 2 support IEEE802. 3bt, and are compatible with Hi PoE. > Supports PD alive mode. > Supports 250 m long distance transmission

S4220-16GT-190

> Transmits data at a high speed through USB 3.0.

> Layer 2 network management PoE switch.

> Supports web, and network management software based on SNMP.

> Network redundancy: STP/RSTP.

> Supports PoE power consumption management, PoE power off management.

> Supports IEEE802.3af, IEEE802.3at.

> Port 1 and port 2 support IEEE802.3bt, and are compatible with Hi-PoE.

> Supports PD alive mode.

> Supports 250 m long-distance transmission mode.



Product Data

 

Hardware

Included Power Adapter

Yes

PoE

Yes

Ethernet Port

18

Optical Port

2

Ethernet Port Speed

10/100/1000 Mbps

Optical Port Speed

1000 Mbps

Description of Function Slots

Port 1-16: 16 × RJ45 10/100/1000 Mbps(PoE)
Port 17-18: 2 × RJ45 10/100/1000 Mbps
Port 19-20: 2 × SFP 1000 Mbps

Debugging

Console × 1

Reset Button

1

Power Supply

100-240 VAC, 50/60 Hz, 3.5 A

Operating Temperature

–10°C to 55°C (+14°F to +131°F)

Operating Humidity

5%–95% (RH)

Power Consumption

Idling load: ≤ 20 W;
Full load: 190 W

Performance

Management Type

Yes

MTBF

467125.73 hours

Switching Capacity

56 Gbps

Packet Forwarding Rate

29.76 Mpps

Packet Buffer Size

4.1 Mbit

Jumbo Frame

10K Byte

MAC Table Size

8K

VLAN Number

4K

VLAN Interface

10

Dynamic ARP

512

Communication Standard

IEEE 802.3, IEEE 802.3u, IEEE 802.3x, IEEE 802.3ab, IEEE 802.3z, IEEE 802.3ad

Feature

PoE Protocol

IEEE802.3af (PoE); IEEE802.3at (PoE+); Hi-PoE; IEEE802.3bt (PoE++)

PoE Power

Port 1-2: ≤ 90 W

Port 3-16: ≤ 30 W

Total: ≤ 190 W

PoE Power Consumption Management

Yes

PoE Pin Assignment

1,2,4,5 (V+),3,6,7,8 (V-)

Long Distance PoE Transmission

Yes

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
ACL

Equipment Management

WEB(http and https)
Telnet
SNMP V1/V2C/V3

General

Statics Protection

Air discharge: 8 kV;
Contact discharge: 6 kV

Lighting Protection

Common mode: 4 kV;
Differential mode: 2 kV

Net Weight

3.405 kg (7.51 lb)

Gross Weight

4.51 kg (9.94 lb)

Product Dimensions

440 mm × 300 mm × 44 mm (17.32" × 11.81" × 1.73")

Packaging Dimensions

525 mm × 410 mm × 110 mm (20.67" × 16.14" × 4.33")

Certifications

CE, FCC

Transmission Performance:

Switch power supply voltage 53V.

CAT5E/CAT6. Max. DC resistance < 10Ω/100m

Cable(m)

Load Capacity(W)

Bandwidth(Mbps)

IEEE802.3bt 90W

100

71.3

100

150

62

10

200

51

10

250

40

10

Hi-PoE 60W

100

53

100

150

50

10

200

47

10

250

37

10

IEEE802.3at 30W

100

25.5

100

150

25.5

10

200

25.5

10

250

25.5

10

Note: Data from this table was collected by Dahua test lab and is for reference only . If there is inconsistency between field application and the table, the field result shall prevail.
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SKU: 58920591268

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4.5 ★★★★★
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J
Verified Purchase
Jenny Rogers
Lake Worth, US
★★★★★ 5
this book was great, it helped me when I was a college student 10 years ago...
Format: Paperback
Now I work as a guidance counselor and I bought 5 copies to gift to my advisees for new years gift!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 24, 2026
J
Verified Purchase
Jerry Ninan Mathullah
Draper, US
★★★★★ 5
This book was a game changer for me…
Format: Paperback
I’ve attempted college twice. On my first attempt I ended up with a 1.8 GPA which resulted in academic probation and a fair amount of tears. I took an almost ten year long hiatus thinking college wasn’t for me before trying again. Except this second time I knew I had to do something different, and that’s when I picked up this book. On my second attempt I ended up with a 3.9 GPA upon graduation and also felt I didn’t have to work myself to the bone to get those grades. I found the chapters on note taking and time management to be particularly useful. While it’s true that my success also had to do with some maturity I had gained over ten years, this book gave me the tools and a system that helped me immensely. It not only helped me academically, but taught me how to “work smarter, not harder.” In short, get the book. You won’t regret spending the money on it.
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Reviewed in the United States on July 26, 2024
A
Verified Purchase
Amazing!!!
Battle Creek, US
★★★★★ 4
Good book
Format: Paperback
Good book
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
S
Verified Purchase
Sydney
Bozeman, US
★★★★★ 5
Another fun wlw paranormal romance from this author
Format: Kindle
Another fun wlw urban fantasy, shifter romance. This time we get to know Heather from the first book better along with her fated mate, V. It was nice to have some enby rep in this genre. Always want to see more people represented in characters that I read. Unfortunately the transphobia that was represented was pretty realistic as well. Good to see some familiar faces as well with Wren and Natalie as well as Rias popping up. The romance between Heather and V is instalove, as it is a fated mates situation. However, Heather has a lot of internal demons to battle. I really felt like her struggles were pretty indicative of someone who has experienced trauma from abuse and neglect. Seeing her internal dialogue go back and forth, knowing that she was self-sabotaging, felt very real. Thankfully, V sees her strength hiding behind her struggles and just falls more in love with her. There is no third act breakup. Not really. There is a point where Heather pushes V away, but she is ready to go back to them and work through her struggles when werewolf drama ensues. The ending, seeing Wren's pack grow is great. And there is obvious plotlines introduced at the very end for any upcoming books.
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Reviewed in the United States on October 30, 2024
I
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Issy W
Grantham, US
★★★★★ 5
enjoyable werewolf story
Format: Kindle
It's Heather's turn to be in the spotlight this time, with new character V, in a story that covers mental health, acceptance, and of course finding true love. Finding your true mate can be a wonderful experience, as well as claiming each other, but what follows after can be a challenging experience, especially when other factors in life decide to interfere. Like Pack of Her Own, there is a lot of action in this story, along with lots of cute moments, and Heather and V make a wonderful pair, even with their insecurities. Seeing them stand up for each other is just great as well. Of course seeing Wren and Natalie again was an added bonus, and if there is a third book I'd love to see all of the characters again as well. Mate of Her Own is a highly enjoyable story, engaging and engrossing, and I loved the tale it told. It was good seeing certain aspects of toxic wolf culture being called out, and Wren doing her best to create a pack that doesn't adhere to the norms (especially considering that she didn't want her own pack, but well, with the ending of the previous book, she doesn't have a lot of choice). It is a great shifter tale, and I do hope to see more in this series.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 11, 2023

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