I/O Expanders

I/O expandersare a type of computer hardware that allows more than one device to connect to a single port on a computer.

How do I/O expanders work?

The expander connects to a single spot, but has multiple connections for other devices. Such expanders offer the advantage of allowing more devices of a particular port type to be used at the same time. This commonly used with USBs and ethernet ports.

Types of I/O expanders

There are two main types of I/O expanders: internal and external.

Internal expanders

These have a connection inside the computer, typically on the motherboard, and the only part the user can see is the expansion plate which houses the ports to which they can connect more devices.

External expanders

An external expander plugs into an existing port introducing multiple new places to connect. When not part of a computer system, these devices are commonly known as splitters.


...
Read more Read less

Filters

Viewing 41 - 60 of 250 products
Results per page
Description Price Number of I/O Channels Interface Number of Pins Package Type Clock Frequency Mounting Type Maximum Supply Voltage Minimum Supply Voltage
RS Stock No. 681-1128
Mfr. Part No.MCP23017-E/SS
BrandMicrochip
HK$10.855
Each (In a Pack of 2)
units
16 I2C 28 SSOP 1.7MHz Surface Mount - -
RS Stock No. 727-5706
Mfr. Part No.PCA9554ABS,118
BrandNXP
HK$7.14
Each (On a Tape of 2)
units
- - - HVQFN - Surface Mount - -
RS Stock No. 162-6381
Mfr. Part No.PCF8574DGVR
HK$5.562
Each (On a Reel of 2000)
units
8 I2C 20 TVSOP 100kHz Surface Mount 6 V 2.5 V
RS Stock No. 193-8488
Mfr. Part No.CY8C9560A-24AXI
HK$47.68
Each (In a Tray of 90)
units
60 I2C 100 TQFP 100kHz Surface Mount 5.25 V 3 V
RS Stock No. 124-2355
Mfr. Part No.PCA9555D,112
BrandNXP
HK$13.86
Each (In a Tube of 30)
units
16 I2C, SMBus 24 SOIC 400kHz Surface Mount 5.5 V 2.3 V
New
RS Stock No. 190-6108
Mfr. Part No.MAX7301ATL+T
HK$35.957
Each (On a Reel of 2500)
units
28 Serial 4-Wire, Serial-I2C (2-Wire) 40 TQFN - Surface Mount 5.5 V 2.5 V
RS Stock No. 145-1322
Mfr. Part No.PCA9534DW
HK$14.72
Each (In a Tube of 40)
units
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 124-2365
Mfr. Part No.PCF8574TS/3,112
BrandNXP
HK$12.26
Each (In a Tube of 75)
units
8 I2C 20 SSOP 100kHz Surface Mount 6 V 2.5 V
RS Stock No. 124-2352
Mfr. Part No.PCA9539PW,112
BrandNXP
HK$15.724
Each (In a Tube of 63)
units
- - 24 TSSOP - Surface Mount - -
New
RS Stock No. 197-7468
Mfr. Part No.PCF8574N
HK$11.83
Each (In a Tube of 25)
units
8 I2C 16 PDIP 100kHz - - -
RS Stock No. 191-4975
Mfr. Part No.MAX7315AUE+
HK$24.328
Each (In a Pack of 5)
units
8 Serial-2 Wire 16 TSSOP 400kHz Surface Mount 3.6 V 2 V
RS Stock No. 727-5670
Mfr. Part No.PCA9518PW,112
BrandNXP
HK$16.725
Each (In a Pack of 2)
units
- - - TSSOP - Surface Mount - -
RS Stock No. 825-3243
Mfr. Part No.PCA9538DW
HK$15.74
Each (In a Pack of 5)
units
8 I2C, SMBus 16 SOIC 400kHz Surface Mount 5.5 V 2.3 V
RS Stock No. 732-1326
Mfr. Part No.PCF8574DGVR
HK$12.84
Each (On a Tape of 5)
units
8 I2C 20 TVSOP 100kHz Surface Mount 6 V 2.5 V
RS Stock No. 162-5843
Mfr. Part No.PCA9535DW
HK$14.276
Each (In a Tube of 25)
units
- - 24 SOIC - Surface Mount - -
RS Stock No. 661-3374
Mfr. Part No.PCF8574ADWRG4
HK$16.80
Each (In a Pack of 5)
units
- - 16 SOIC - Surface Mount - -
RS Stock No. 770-9735
Mfr. Part No.MCP23S17-E/ML
BrandMicrochip
HK$12.92
Each (In a Pack of 3)
units
16 Serial-SPI 28 QFN 10MHz Surface Mount 5.5 V 1.8 V
RS Stock No. 190-0419
Mfr. Part No.MAX7301AAX+
HK$58.255
Each (In a Pack of 2)
units
- - 36 SSOP - Surface Mount - -
RS Stock No. 923-7810
Mfr. Part No.MAX7311AWG+
HK$41.18
Each (In a Tube of 30)
units
16 Serial-2 Wire 24 SOIC 400kHz Surface Mount 5.5 V 2 V
RS Stock No. 727-5680
Mfr. Part No.PCA9535BS,118
BrandNXP
HK$15.605
Each (In a Pack of 2)
units
- - - HVQFN - Surface Mount - -
Related Products
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam ...
Description:
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam and pump linkage for long lifePumping handle included on all modelsSafety relief valve to prevent overloadAutomatic by-pass port to prevent over-extensionWiper seal for extended lifeThick base material with large area for increased ...
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam ...
Description:
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam and pump linkage for long lifePumping handle included on all modelsSafety relief valve to prevent overloadAutomatic by-pass port to prevent over-extensionWiper seal for extended lifeThick base material with large area for increased ...
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam ...
Description:
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam and pump linkage for long lifePumping handle included on all modelsSafety relief valve to prevent overloadAutomatic by-pass port to prevent over-extensionWiper seal for extended lifeThick base material with large area for increased ...
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam ...
Description:
Lower handle effort reduces operator fatigueFully serviceableHigh-strength beam and pump linkage for long lifePumping handle included on all modelsSafety relief valve to prevent overloadAutomatic by-pass port to prevent over-extensionWiper seal for extended lifeThick base material with large area for increased ...