.hide-partial { max-height: none; } .show-more { display: none; }

4 Port Interface Modules

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Results: 53

Applied Filters:

Number of Ports = 4 Port

Manufacturer

Product

Type

Maximum Data Rate

Interface Type

Supply Voltage - Min

Supply Voltage - Max

Minimum Operating Temperature

Maximum Operating Temperature

Series

Packaging

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Part #

Interface Modules USB-C to Quad-Monitor DisplayPort Adapter, 4K 60Hz, 140W PD Passthrough, TAA

QUAD-USB-DP-ADAPT
StarTech
1: HK$1,408.83
4In Stock
New Product

Mfr. Part No.
QUAD-USB-DP-ADAPT

Mouser Part No
179-QUADUSBDPADAPT

New Product

StarTech

Interface Modules USB-C to Quad-Monitor DisplayPort Adapter, 4K 60Hz, 140W PD Passthrough, TAA

Datasheet

4In Stock

HK$1,408.83

HK$1,282.73

HK$1,236.21

HK$1,208.59

View

Min.: 1
Mult.: 1

USB Adapters

4 Port

5 Gb/s

USB

0 C

+ 40 C

Interface Modules 4-Port HDMI Extender and Splitter Over CAT6, 4K 60Hz, 230ft (70m)

4K7014IC-EXTEND-HDMI
StarTech
1: HK$5,586.15
4In Stock
New Product

Mfr. Part No.
4K7014IC-EXTEND-HDMI

Mouser Part No
179-4K7014ICEXTENDHD

New Product

StarTech

Interface Modules 4-Port HDMI Extender and Splitter Over CAT6, 4K 60Hz, 230ft (70m)

Datasheet

4In Stock

HK$5,586.15

HK$5,270.09

Min.: 1
Mult.: 1

HDMI Extenders

4 Port

100 VAC

240 VAC

0 C

+ 50 C

Interface Modules USB TO VIA ADAPTER B

USB-ADAPTER-1V-B00
Vicor
1: HK$558.47
4In Stock

Mfr. Part No.
USB-ADAPTER-1V-B00

Mouser Part No
492-USBADAPTER1VB00

Vicor

Interface Modules USB TO VIA ADAPTER B

Datasheet

4In Stock

HK$558.47

HK$443.72

HK$405.41

HK$391.03

Min.: 1
Mult.: 1

Adapters

USB to PMBus

4 Port

I2C, PMBus, USB

Bulk

Interface Modules Tripp Lite DVI over Cat5 Cat6 Extender Video Transmitter and Receiver TAA

B140-1P1-WP-1
Tripp Lite
1: HK$359.79
13In Stock

Mfr. Part No.
B140-1P1-WP-1

Mouser Part No
545-B140-1P1-WP-1

Tripp Lite

Interface Modules Tripp Lite DVI over Cat5 Cat6 Extender Video Transmitter and Receiver TAA

Datasheet

13In Stock

HK$359.79

HK$319.76

HK$299.70

HK$287.95

View

Min.: 1
Mult.: 1

Expansion Kits

DVI to Ethernet

4 Port

DVI, Ethernet

0 C

+ 40 C

DVI

Bulk

Interface Modules USB-Optical Isolated Quad RS-422/485 Adpt

ES-U-2104-M
Connective Peripherals
1: HK$2,798.66
5In Stock

Mfr. Part No.
ES-U-2104-M

Mouser Part No
734-ES-U-2104-M

Connective Peripherals

Interface Modules USB-Optical Isolated Quad RS-422/485 Adpt

Datasheet

5In Stock

HK$2,798.66

HK$2,355.44

HK$2,260.83

View

Min.: 1
Mult.: 1

Converters

USB to RS-422/485

4 Port

1 Mb/s

RS-422/485, USB

5 V

0 C

+ 55 C

ES-U-2104

Bulk

Interface Modules HDBaseT-USB3 over Cat6a Extender Kit, 4 USB-A 3.2 Gen 1 Ports, PoC, RS-232, Up to 328 ft. (100 m), TAA

BHDBT3-USB
Eaton
1: HK$4,833.61
8In Stock
New Product

Mfr. Part No.
BHDBT3-USB

Mouser Part No
545-BHDBT3-USB

New Product

Eaton

Interface Modules HDBaseT-USB3 over Cat6a Extender Kit, 4 USB-A 3.2 Gen 1 Ports, PoC, RS-232, Up to 328 ft. (100 m), TAA

Learn More

Datasheet

8In Stock

HK$4,833.61

HK$4,672.41

HK$4,285.74

Min.: 1
Mult.: 1

Extender Kits

4 Port

5 Gb/s

USB

0 C

+ 40 C

Interface Modules 4-Port HDMI Splitter - 8K 60 Hz, HDR10+, Multi-Resolution Support, TAA

B118-004-8K
Eaton
1: HK$1,409.24
5In Stock
New Product

Mfr. Part No.
B118-004-8K

Mouser Part No
545-B118-004-8K

New Product

Eaton

Interface Modules 4-Port HDMI Splitter - 8K 60 Hz, HDR10+, Multi-Resolution Support, TAA

Learn More

Datasheet

5In Stock

HK$1,409.24

HK$1,265.30

HK$1,214.01

HK$1,199.30

View

Min.: 1
Mult.: 1

Splitters

HDMI

4 Port

HDMI

0 C

+ 40 C

Interface Modules Digi Edgeport/4s; 4 port RS-232/422/485 software selectable DB-9 to USB Converter; (includes 1 meter A to B USB cable);Replaces 301-1000-94

EP-USB-4S
Digi
1: HK$4,438.80
40In Stock
28Expected 28/9/2026

Mfr. Part No.
EP-USB-4S

Mouser Part No
888-EP-USB-4S

Digi

Interface Modules Digi Edgeport/4s; 4 port RS-232/422/485 software selectable DB-9 to USB Converter; (includes 1 meter A to B USB cable);Replaces 301-1000-94

Datasheet

40In Stock

28Expected 28/9/2026

HK$4,438.80

Min.: 1
Mult.: 1

Converters

USB to RS-232/422/485

4 Port

230 kb/s

RS-232/422/485, USB

0 C

+ 55 C

Interface Modules 4-port RS232 to Ethernet Device Server

I43-SERIAL-ETHERNET
StarTech
1: HK$4,769.41
2In Stock
3Expected 11/9/2026
New At Mouser

Mfr. Part No.
I43-SERIAL-ETHERNET

Mouser Part No
16-I43SERIALETHERNET

New At Mouser

StarTech

Interface Modules 4-port RS232 to Ethernet Device Server

Datasheet

2In Stock

3Expected 11/9/2026

HK$4,769.41

HK$4,319.69

Min.: 1
Mult.: 1

Ethernet Adapters

Serial Converter

4 Port

921.6 Kbps

Serial

100 VAC

240 VAC

0 C

+ 60 C

Bulk

Interface Modules 4 Port PCI Express RS232 422 485 Serial Card

PS74ADF-SERIAL-CARD
StarTech
1: HK$1,968.03
5In Stock
New At Mouser

Mfr. Part No.
PS74ADF-SERIAL-CARD

Mouser Part No
16-PS74ADFSERIALCARD

New At Mouser

StarTech

Interface Modules 4 Port PCI Express RS232 422 485 Serial Card

Datasheet

5In Stock

HK$1,968.03

HK$1,749.79

HK$1,668.41

Min.: 1
Mult.: 1

PCIe Serial Cards

PCIe Card

4 Port

Serial

0 C

+ 70 C

Bulk

Interface Modules 4 Port Gigabit NIC w Intel I350 AM4 Chip PCIe

ST4000SPEXI
StarTech
1: HK$2,167.94
30In Stock
New At Mouser

Mfr. Part No.
ST4000SPEXI

Mouser Part No
16-ST4000SPEXI

New At Mouser

StarTech

Interface Modules 4 Port Gigabit NIC w Intel I350 AM4 Chip PCIe

Datasheet

30In Stock

HK$2,167.94

HK$1,923.40

HK$1,854.27

Min.: 1
Mult.: 1

PCIe Serial Cards

Network Card

4 Port

2000 Mbps

+ 5 C

+ 50 C

Bulk

Interface Modules Digi Edgeport/4; 4 port DB-9 RS232 to USB Converter (includes 1 meter A to B USB cable); Replaces 301-1000-04

EP-USB-4
Digi
1: HK$3,575.70
32In Stock

Mfr. Part No.
EP-USB-4

Mouser Part No
888-EP-USB-4

Digi

Interface Modules Digi Edgeport/4; 4 port DB-9 RS232 to USB Converter (includes 1 meter A to B USB cable); Replaces 301-1000-04

Datasheet

32In Stock

HK$3,575.70

Min.: 1
Mult.: 1

Converters

USB to RS-232

4 Port

230 kb/s

RS-232, USB

0 C

+ 55 C

Interface Modules CANbridge NT420, 4 CAN/ CAN FD

1.01.0331.42000
HMS Networks
1: HK$7,998.06
6In Stock

Mfr. Part No.
1.01.0331.42000

Mouser Part No
898-1.01.0331.42000

HMS Networks

Interface Modules CANbridge NT420, 4 CAN/ CAN FD

Datasheet

6In Stock

HK$7,998.06

Min.: 1
Mult.: 1

Bridges

CAN/CAN FD

4 Port

1 Mb/s

CAN/CAN FB

9 V

36 V

- 40 C

+ 85 C

IXXAT

Bulk

Interface Modules CANa.net NT 420 4 CAN/CAN FD

1.01.0332.42000
HMS Networks
1: HK$9,017.34
11In Stock
22Expected 7/9/2026

Mfr. Part No.
1.01.0332.42000

Mouser Part No
898-1.01.0332.42000

HMS Networks

Interface Modules CANa.net NT 420 4 CAN/CAN FD

Datasheet

11In Stock

22Expected 7/9/2026

HK$9,017.34

Min.: 1
Mult.: 1

Bridges

CAN, Ethernet

4 Port

100 Mb/s

CAN, Ethernet

9 V

36 V

- 40 C

+ 85 C

IXXAT

Bulk

Interface Modules 4PT INDUSTRIAL USB-SERIAL ADPT

U208-004-IND
Tripp Lite
1: HK$1,202.26
24In Stock

Mfr. Part No.
U208-004-IND

Mouser Part No
545-U208-004-IND

Tripp Lite

Interface Modules 4PT INDUSTRIAL USB-SERIAL ADPT

Datasheet

24In Stock

HK$1,202.26

HK$1,077.72

HK$1,025.77

HK$976.86

Min.: 1
Mult.: 1

Adapters

USB to RS-422/485

4 Port

480 Mb/s

RS-422/485, USB

100 VAC

240 VAC

0 C

+ 40 C

Serial

Interface Modules GW EIP/MODBUS 2E/2DB9

1062380
Phoenix Contact
1: HK$7,487.35
4In Stock
7Expected 21/10/2026

Mfr. Part No.
1062380

Mouser Part No
651-1062380

Phoenix Contact

Interface Modules GW EIP/MODBUS 2E/2DB9

Learn More

Datasheet

4In Stock

7Expected 21/10/2026

HK$7,487.35

Min.: 1
Mult.: 1

Converters

EtherNet/IP to Modbus

4 Port

230.4 kb/s

Ethernet, Modbus

10.8 V

30 V

- 40 C

+ 70 C

Interface Modules GW MODBUS TCP/RTU 2E/2DB9

2702766
Phoenix Contact
1: HK$6,303.18
6In Stock

Mfr. Part No.
2702766

Mouser Part No
651-2702766

Phoenix Contact

Interface Modules GW MODBUS TCP/RTU 2E/2DB9

Learn More

Datasheet

6In Stock

HK$6,303.18

Min.: 1
Mult.: 1

Converters

Modbus RTU to Modbus TCP

4 Port

100 Mb/s

Ethernet, Modbus

10.8 V

30 V

- 40 C

+ 70 C

Interface Modules An Openterface Mini-KVM which offers a plug and play network independent experience,establishes HDMI and USB connection.

OP-MINIKVM-BASIC
TechxArtisan
1: HK$731.58
93In Stock
100Expected 30/10/2026

Mfr. Part No.
OP-MINIKVM-BASIC

Mouser Part No
392-OP-MINIKVM-BASIC

TechxArtisan

Interface Modules An Openterface Mini-KVM which offers a plug and play network independent experience,establishes HDMI and USB connection.

Learn More

Datasheet

93In Stock

100Expected 30/10/2026

HK$731.58

Min.: 1
Mult.: 1

KVM Switches

HDMI, USB 2.0, USB Type-C

4 Port

HDMI, USB 2.0, USB Type-C

0 C

+ 40 C

Openterface Mini-KVM

Each

Interface Modules Openterface Mini-KVM with quick start guide, HDMI male-to-male cable, type-C to USB-A male cable with USB-A female to type c.

OP-MINIKVM-TOOLKIT
TechxArtisan
1: HK$1,075.18
145In Stock
100Expected 16/10/2026

Mfr. Part No.
OP-MINIKVM-TOOLKIT

Mouser Part No
392-OPMINIKVMTOOLKIT

TechxArtisan

Interface Modules Openterface Mini-KVM with quick start guide, HDMI male-to-male cable, type-C to USB-A male cable with USB-A female to type c.

Learn More

Datasheet

145In Stock

100Expected 16/10/2026

HK$1,075.18

Min.: 1
Mult.: 1

KVM Switches

HDMI, USB 2.0, USB Type-C

4 Port

HDMI, USB 2.0, USB Type-C

0 C

+ 40 C

Openterface Mini-KVM

Each

Interface Modules An expansion module for M5Stack Core2 converting to Grove interface.

M123
M5Stack
1: HK$57.13
43In Stock

Mfr. Part No.
M123

Mouser Part No
170-M123

M5Stack

Interface Modules An expansion module for M5Stack Core2 converting to Grove interface.

Datasheet

43In Stock

HK$57.13

Min.: 1
Mult.: 1

Expansion Modules

Core2 to Grove

4 Port

Interface Modules 3PT TYPEC GBIT ETHNT HUB,BLACK

U460-003-3A1GB
Tripp Lite
1: HK$419.47
8In Stock

Mfr. Part No.
U460-003-3A1GB

Mouser Part No
545-U460-003-3A1GB

Tripp Lite

Interface Modules 3PT TYPEC GBIT ETHNT HUB,BLACK

Datasheet

8In Stock

HK$419.47

HK$382.07

HK$364.31

HK$351.41

View

Min.: 1
Mult.: 1

Hubs

USB Type-C to Ethernet, USB 3.1

4 Port

5 Gb/s

Ethernet, USB 3.1, USB Type-C

0 C

+ 45 C

U460

Interface Modules HI-SPEED USB TO 4 PORT SE

USB2-H-1004
Connective Peripherals
1: HK$1,073.20
34In Stock

Mfr. Part No.
USB2-H-1004

Mouser Part No
734-USB2-H-1004

Connective Peripherals

Interface Modules HI-SPEED USB TO 4 PORT SE

Datasheet

34In Stock

HK$1,073.20

HK$950.48

HK$930.50

HK$868.69

Min.: 1
Mult.: 1

Adapters

USB 2.0 to RS-232

4 Port

480 Mb/s

RS-232, USB 2.0

5 V

- 40 C

+ 85 C

USB2-H-100

Bulk

Interface Modules HI-SPD USB TO 4-PORT RS232 INDUST ADAPTE

USB2-H-1004-M
Connective Peripherals
1: HK$1,260.78
13In Stock

Mfr. Part No.
USB2-H-1004-M

Mouser Part No
734-USB2-H-1004-M

Connective Peripherals

Interface Modules HI-SPD USB TO 4-PORT RS232 INDUST ADAPTE

Learn More

Datasheet

13In Stock

HK$1,260.78

HK$1,092.36

HK$1,024.05

HK$979.91

Min.: 1
Mult.: 1

Adapters

USB 2.0 to RS-232

4 Port

480 Mb/s

RS-232, USB 2.0

5 V

- 40 C

+ 85 C

USB2-H

Bulk

Interface Modules HI-SPD USB TO 4-PORT RS422 INDUST ADAPTE

USB2-H-6004-M
Connective Peripherals
1: HK$1,596.82
14In Stock

Mfr. Part No.
USB2-H-6004-M

Mouser Part No
734-USB2-H-6004-M

Connective Peripherals

Interface Modules HI-SPD USB TO 4-PORT RS422 INDUST ADAPTE

Learn More

Datasheet

14In Stock

HK$1,596.82

HK$1,327.53

HK$1,220.18

HK$1,148.25

View

Min.: 1
Mult.: 1

Adapters

USB 2.0 to RS-422

4 Port

480 Mb/s

RS-422, USB 2.0

5 V

- 40 C

+ 85 C

USB2-H

Bulk

Interface Modules Hi-speed USB to 4prt Serial RS485 Adapte

USB2-H-5004
Connective Peripherals
1: HK$1,072.96
89In Stock

Mfr. Part No.
USB2-H-5004

Mouser Part No
734-USB2-H-5004

Connective Peripherals

Interface Modules Hi-speed USB to 4prt Serial RS485 Adapte

Learn More

Datasheet

89In Stock

HK$1,072.96

HK$955.16

HK$920.06

HK$883.24

HK$822.00

Min.: 1
Mult.: 1

Adapters

USB 2.0 to RS-485

4 Port

480 Mb/s

RS-485, USB 2.0

5 V

- 40 C

+ 85 C

USB2-H

Bulk

4 Port Interface Modules

Customer Service Office

Company

Resources

Support

Adapters
Bridges
CompactPCI Serial Cards
Converters
Ethernet Adapters
Ethernet Extenders
Expansion Kits
Expansion Modules
Extender Kits
HDMI Extenders
Hubs
Interface Modules
KVM Switches
mPCIe Serial Cards
Optical Transceivers
PCIe Serial Cards
Repeaters
Serial Communication Cards
Splitters
USB Adapters

Actuator Sensor Interface - AS-i
CAN
CAN, Ethernet
CAN/CAN FD
Core2 to Grove
DVI to Ethernet
EtherNet/IP to Modbus
Ethernet Extender Kit
HDMI
HDMI, USB 2.0, USB Type-C
HDMI to VGA, VGA to HDMI
HDMI to VGA, VGA to LAN, LAN to HDMI
IO-Link
Modbus RTU to Modbus TCP
Network Card
PCIe Card
PCIe to RS-232/422/485
QSFP28/QSFP+
RS-232
RS-232/422/485

RS-232, USB 2.0
CAN
Ethernet, Modbus
HDMI, USB 2.0, USB Type-C
M12
RS-232, USB
RS-422, USB 2.0
RS-422/485
RS-422/485, USB
RS-485, USB 2.0
Serial
USB
Actuator Sensor Interface - Asi
CAN FD, USB
CAN, Ethernet
CAN, USB 2.0
CAN/CAN FB
DIO, mPCIe, USB 2.0
DVI, Ethernet
DVI, Ethernet, PD Charging, USB 3.0, USB Type-C