4-Port Serial to Ethernet Adapter StarTech.com I43-SERIAL-ETHERNET

Name: StarTech.com 4-Port Serial to Ethernet I43-SERIAL-ETHERNET
Brand: StarTech
SKU: 11034052
Price: 522.99 EUR
Availability: InStock

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StarTech.com 4-Port Serial to Ethernet Adapter IP Serial Device Server RS232

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This is due to long delivery times and limited product warranties.

Short description

The StarTech.com 4-Port Serial to Ethernet Adapter allows remote access to RS232 devices via Ethernet. It features a robust metal housing, supports IEEE 802.3 standards, and is wall or DIN rail mountable. Dimensions are 179mm x 60mm x 23mm, with a power input of 100-240V and output of 5V. Ideal for industrial applications requiring reliable serial communication.

Available at price 522.99 €: 2 pcs.

Total available for order: 8 pcs.

Warranty: 2 Years

SKU: 11034052

Manufacturer: StarTech

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From 4.99 € (Weight: 0.40 kg)

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Available for private customers at price 526.49 €: 2 pcs.

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Product information

Description

The StarTech.com 4-Port Serial to Ethernet Adapter (I43-SERIAL-ETHERNET) enables remote access and management of RS232 serial devices over an IP network. Housed in a full metal enclosure with wall and DIN-rail mounting hardware, the unit measures 178 x 59.4 x 23 mm and supports IEEE 802.3 Ethernet connectivity and multiple serial-to-IP protocols.

Advantages

This 4-port DB9 to Ethernet adapter provides centralized serial device management via Windows Virtual COM Port software or a platform-independent Web User Interface. It supports Telnet Server (RFC2217), TCP Server, TCP Client and UDP protocols, offers dual power input options (DC jack and terminal block), includes ESD level 4 surge protection, and can supply 5 VDC on pin 9 when required. The compact metal chassis and included mounting hardware allow flexible installation in industrial environments.

Suitable for

Remote management of RS232 devices such as PLCs, barcode scanners and meters
Industrial and factory automation requiring reliable serial-to-IP connectivity
Networked serial device deployments on walls or DIN rails
Environments needing ESD protection and a rugged metal enclosure

Key specifications

Model: I43-SERIAL-ETHERNET
Serial ports: 4 x RS232 (DB9)
Ethernet: 1 x RJ45 10/100 Mbps (IEEE 802.3)
Protocols: Telnet Server (RFC2217), TCP Server, TCP Client, UDP
Power input: 100–240 V (adapter included); outputs 5 VDC (can supply 5V on pin 9)
Surge/ESD: ESD level 4 protection
Dimensions: 178 x 59.4 x 23 mm
Mounting: Wall and DIN rail included

How to use

Install the adapter in the chosen orientation using the supplied wall or DIN-rail hardware. Connect RS232 devices to the DB9 ports and link the adapter to the network via the RJ45 Ethernet port. Power the unit using the included universal adapter or the terminal block input. Configure device servers using the Windows Virtual COM Port software to create virtual COM ports on Windows systems or use the Web User Interface from any operating system to set up network parameters and serial-port behavior.

Usage recommendations

For stable operation in industrial settings, mount the adapter on a secure surface or DIN rail, ensure proper grounding, and verify network and serial baud rate settings match connected devices. Use the WebUI for cross-platform configuration and the Windows software for centralized management if deploying multiple units.

All features

Weight:: 0.4 kg
Power consumption (typical): Power consumption in switched-on state expressed in W.: 15 W
Full duplex:: Yes
Operating relative humidity (H-H):: 5 - 95
Storage temperature (T-T):: -20 - 75
Package weight:: 600 g
Operating temperature (T-T):: 0 - 60
AC adapter included:: Yes
Serial ports quantity:: 4
Height:: 23 mm
Input voltage:: 100 - 240
Output voltage:: 5
LED indicators:: Y
Width:: 179 mm
Depth:: 60 mm
Product colour:: Black
Networking standards:: IEEE 802.3i, IEEE 802.3u
Mounting:: Wall/DIN
Host interface:: RS-232
Input current:: 0.48
Output current:: 3 A
Package depth:: 242 mm
Package height:: 55 mm
Package width:: 166 mm
Manual:: Yes
Master (outer) case height:: 280 mm
Master (outer) case width:: 410 mm
Housing material:: Steel
Connector 1:: DB-9
Connector 2:: RJ-45
Auto MDI/MDI-X:: Yes
Output interface:: RJ-45
Baud rate:: 921.6 Kbit/s
Data bits:: 7, 8
Stop bits:: 1, 2
Parity bit:: Even, N, Odd, Space
Flow Control type:: N, RTS/CTS, XON/XOFF
Windows operating systems supported:: Windows 10, Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise x64, Windows 10 Home, Windows 10 Home x64, Windows 10 IOT Core, Windows 10 IoT Enterprise, Windows 10 Pro, Windows 10 Pro x64, Windows 10 x64, Windows 11, Windows 11 Enterprise, Windows 11 Enterprise x64, Windows 11 Home, Windows 11 Pro, Windows 11 x64, Windows 7, Windows 7 Enterprise, Windows 7 Enterprise x64, Windows 7 Home Basic, Windows 7 Home Basic x64, Windows 7 Home Premium, Windows 7 Home Premium x64, Windows 7 Professional, Windows 7 Professional x64, Windows 7 Starter, Windows 7 Starter x64, Windows 7 Ultimate, Windows 7 Ultimate x64, Windows 7 x64, Windows 8, Windows 8 Enterprise, Windows 8 Enterprise x64, Windows 8 Pro, Windows 8 Pro x64, Windows 8 x64, Windows Vista, Windows Vista Business, Windows Vista Business x64, Windows Vista Enterprise, Windows Vista Enterprise x64, Windows Vista Home Basic, Windows Vista Home Premium, Windows Vista Home Premium x64, Windows Vista Ultimate, Windows Vista Ultimate x64, Windows XP, Windows XP Home, Windows XP Home x64, Windows XP Professional, Windows XP Professional x64
Auto-negotiation:: Yes
Electrostatic Discharge (ESD) protection (air):: 15 kV
Electrostatic Discharge (ESD) protection (contact):: 8 kV
Master (outer) case length:: 430 mm
Products per master (outer) case:: 15 pc(s)
DIN rail included:: Yes
Number of screws included:: 2 pc(s)

Instructions

mmo_121064825_1719309681_5258_86.pdf

startech-I43-SERIAL-ETHERNET-11034052.pdf

Description

Instructions

mmo_121064825_1719309681_5258_86.pdf

startech-I43-SERIAL-ETHERNET-11034052.pdf

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Warehouse	Stock	Delivery to the store	Store Price
WH354	2	01.07.2026	526.49 €

Available only for legal entities
Warehouse	Stock	Delivery to the store	Store Price
WH109	2	08.07.2026	522.99 € Best price
EU9	4	22.06.2026 Best delivery	611.49 €

526.49 €

Stock: 2

Delivery Date: 01.07.2026

Warehouse: WH354

Available only for legal entities

522.99 €

Stock: 2

Delivery Date: 08.07.2026

Warehouse: WH109

611.49 €

Stock: 4

Delivery Date: 22.06.2026 Best delivery

Warehouse: EU9

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Customer questions

FAQ

How much does the 4-Port Serial to Ethernet Adapter StarTech.com I43-SERIAL-ETHERNET cost, and is it available for purchase?

The price is 522.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 08.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All StarTech products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized StarTech service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

Where can I download the instructions for 4-Port Serial to Ethernet Adapter StarTech.com I43-SERIAL-ETHERNET?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

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