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Description
USR N520 2-PORT SERIAL-ETHERNETAn Industrial 2 Port Ethernet Device Server With Bi directional Transparent Transmission Between RS232 RS485 RS422 and Network. 2 Port Ethernet Device Server Specifications System Information Processor Cortex M4 Basic Frequency 120MHz Flash 512K byte Ethernet Port Number 1 Interface Standard RJ45 Rate 10 100 Mbps MDI MDIX, auto switch between cross and direct connection Protection 2KV electromagnetism isolation, shell insulation blocking Network
An Industrial 2 Port Ethernet Device Server With Bi-directional Transparent Transmission Between RS232/RS485/RS422 and Network.
2 Port Ethernet Device Server
Specifications
| System Information | |
| Processor | Cortex-M4 |
| Basic Frequency | 120MHz |
| Flash | 512K byte |
| Ethernet | |
| Port Number | 1 |
| Interface Standard | RJ45 |
| Rate | 10/100 Mbps MDI/MDIX, auto switch between cross and direct connection |
| Protection | 2KV electromagnetism isolation, shell insulation blocking |
| Network Protocol | IP, TCP, UDP, DHCP, DNS, https, ARP, ICMP, Websocket, httpsD Client |
| Receive Buffer | Max 16k bytes buffer |
| Serial | |
| Port Number | 2 (RS232/485/422*2), 2 serial ports can simultaneously work at the different working modes. |
| Interface Standard |
RS-232: TX/RX/RTS/CTS
RS-485: A+/B-
RS422: TX+/TX-/RX+/RX-
|
| Data Bits | 5, 6, 7, 8 |
| Stop Bit | 1, 2 |
| Check Bit | None, Even, Odd, Space, Mark |
| Baud Rate | 600 bps ~ 230K bps |
| Flow Control | RTS/CTS/Xon/Xoff |
| Buffer | Send and receive 2k bytes respectively |
| Protection | ESD protection, anti-surge |
| SocketA | |
| Transparent Transmission Mode | TCP Server/TCP Client/UDP Server/UDP Client |
| Supported Function | Networking printing, Modbus Gateway, USR-Cloud, self-defined registration package, self-defined network and serial heartbeat package |
| SocketB | TCP Client/UDP Client |
| Software | |
| Virtual Serial（USR-VCOM） | Windows 2000 or higher (32 bit/64 bit) |
| Configuration | Built-in webpage, computer set-up software, serial command |
| Basic Parameter | |
| Size | 150 x 79 x 30 mm |
| Operating Temp. | -40 ~ 85°C |
| Storage Temp. | -45 ~ 105°C, 5 ~ 95% RH |
| Input Voltage | DC 5 ~ 36V |
| Working Current |
95mA (aver) @ 5V
45mA (aver) @ 12V
|
| Power | <1W |
| More | |
| Certificate | CE, FCC, ROHS, KCC and WEEE pending |
| Warranty | 2 years |
| Accessory | 12V power supply, serial line, cable, converter |
Downloads
Additional Information
| Device | Server |
| Type | 2 Port | Ethernet | Device |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 27 reviews
Sort
Product Reviews
★★★★★ 5
Long Cables and Easy to Spot
Size: 10FT, Color: Blue
So far these have been great chargers. They charge quickly and we have not had any issues with them overheating or causing problems with our iPhones, which is always my main concern with third party chargers.
The 10 foot length is a big plus. It gives plenty of flexibility whether you are on the couch, in bed, or working at a desk. The extra length makes a noticeable difference compared to standard cables.
I actually bought the blue set for my wife so her chargers would stand out from all the white ones around the house. That has worked perfectly. They are easy to identify and no one else grabs them by mistake. The two pack was ideal for that reason, giving her one for the bedroom and one for another room.
If you are looking for a fast charging option with longer cables and want something that is easy to distinguish from the usual white cords, this is a solid choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 27, 2026
★★★★★ 5
Great block & cables!
Size: 10FT, Color: White
Chargers work fantastically! Charges iPhone 16 superfast as well as new larger iPads. I’ve also used it to charge my MacBook Pro, which it works well with that as well. Doesn’t seem to get excessively hot and the cables are of high-quality. Have bought a lot of these so far and love them!
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Reviewed in the United States on April 28, 2026
★★★★★ 5
Great value
Size: 10FT, Color: Purple
Great charger. Super fast & super long to reach wherever you need it to
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Love this it works so well
Size: 10FT, Color: Purple
The link is good. The color is beautiful, they're very easy to use. The charging speed is amazing. They help keep my battery charged all day long, very versatile. It weighs absolutely nothing. And you wanna talk about durability?My dog chewed it and they're still working.
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Reviewed in the United States on May 10, 2026
★★★★★ 4
Decent
Size: 10FT, Color: White
Would of gave a 5 star rating but in terms of quality it’s decent as far as advertisement of it being 10ft is a lie I still had one of my original apple 10ft cable and these are technically 8-8.5ft. So far both boxes and cables still functional and working 5 months later better than most chargers you will buy at a gas station, that will only last about 2-3 months.
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Reviewed in the United States on March 20, 2026
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