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

Wireless communication module Wireless & RF Modules

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

Types of Wireless & RF Modules

List Images

Results: 137

Applied Filters:

Tradename = Wireless communication module

Product Type

Product

Frequency

Interface Type

Protocol - Bluetooth, BLE - 802.15.1

Protocol - Cellular, NBIoT, LTE

Protocol - GPS, GLONASS

Protocol - WiFi - 802.11

Protocol - Sub GHz

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; }

Download Table (.CSV)

Part #

Mobile Modules Embedded, 698-960,1710-3800, LTE (4G), PCB, -, -, SMD, 26 x 8 x 3

BG96MATEA-128-SGN
Quectel
1: ₹4,187.31
4In Stock

Mfr. Part No.
BG96MATEA-128-SGN

Mouser Part No
277-BG96MATEA128SGN

Quectel

Mobile Modules Embedded, 698-960,1710-3800, LTE (4G), PCB, -, -, SMD, 26 x 8 x 3

Learn More

Datasheet

4In Stock

₹4,187.31

₹4,069.86

₹4,027.23

₹4,016.79

View

Min.: 1
Mult.: 1

Cellular Modules

EGPRS, GNSS, LTE CatM1, LTE Cat NB1

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

ADC, GPIO, PCM, UART, USB 2.0

EGPRS, LTE Cat-M1, LTE Cat NB1

GNSS

Multiprotocol Modules External, 700-960 MHz, 1700-2700 MHz;, Main LTE&DIV LTE, Combining, 2000, SMA Male (center pin), Screw, F 120 43

EC25AFATEA-512-STD
Quectel
1: ₹5,542.77
4In Stock

Mfr. Part No.
EC25AFATEA-512-STD

Mouser Part No
277-EC25AFATEA512STD

Quectel

Multiprotocol Modules External, 700-960 MHz, 1700-2700 MHz;, Main LTE&DIV LTE, Combining, 2000, SMA Male (center pin), Screw, F 120 43

4In Stock

₹5,542.77

Min.: 1
Mult.: 1

Multiprotocol Modules

GNSS, LTE Cat 4

700 MHz to 960 MHz, 1.7 GHz to 2.7 GHz

ADC, I2C, PCM, SDIO, SGMII, UART, USB 2.0

LTE Cat 4

GNSS

Multiprotocol Modules Embedded, 1559-1606, GNSS L1, Ceramic, -, -, Pin Mounting, 25 25 4

BG95M1LATEA-64-SGNS
Quectel
1: ₹4,189.05
2In Stock

Mfr. Part No.
BG95M1LATEA-64-SGNS

Mouser Part No
277-G95M1LATEA64SGNS

Quectel

Multiprotocol Modules Embedded, 1559-1606, GNSS L1, Ceramic, -, -, Pin Mounting, 25 25 4

Datasheet

2In Stock

₹4,189.05

₹4,188.18

₹4,064.64

₹4,028.10

View

Min.: 1
Mult.: 1

Multiprotocol Modules

BDS, Galileo, GLONASS, GPS, LTE Cat M1

GPIO, I2C, UART, USB

LTE Cat M1

BDS, Galileo, GLONASS, GPS

Multiprotocol Modules Embedded, 1710-2700, 3300-5000, 5G, FPC with holder, -, Spring contact, Screw, 37.25 9.6 10.1

BG95M2LATEA-64-SGNS
Quectel
1: ₹3,262.50
1In Stock

Mfr. Part No.
BG95M2LATEA-64-SGNS

Mouser Part No
277-G95M2LATEA64SGNS

Quectel

Multiprotocol Modules Embedded, 1710-2700, 3300-5000, 5G, FPC with holder, -, Spring contact, Screw, 37.25 9.6 10.1

Learn More

Datasheet

1In Stock

₹3,262.50

₹3,261.63

₹3,260.76

₹3,213.78

View

Min.: 1
Mult.: 1

Multiprotocol Modules

BDS, Galileo, GLONASS, GPS, LTE Cat M1/NB2

GPIO, I2C, UART, USB

LTE Cat M1/NB2

BDS, Galileo, GLONASS, GPS

GNSS / GPS Modules Single band, RTC, 3 GNSS (Airoha 3333)

L76-M33
Quectel
1: ₹876.09
892In Stock
1,500On Order
NRND

Mfr. Part No.
L76-M33

Mouser Part No
277-L76-M33

NRND

Quectel

GNSS / GPS Modules Single band, RTC, 3 GNSS (Airoha 3333)

Learn More

Datasheet

892In Stock

1,500On Order

Cut Tape

₹876.09

₹761.25

₹721.23

₹665.55

Reel

₹609.00

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 500

GPS Modules

1.57542 GHz

UART

GNSS

Multiprotocol Modules Longevity till 2025. Recommended to push SC682A for new designs

SC600TNAPA-E53-UGADA
Quectel
1: ₹13,543.29
30In Stock

Mfr. Part No.
SC600TNAPA-E53-UGADA

Mouser Part No
277-600TNAPAE53UGADA

Quectel

Multiprotocol Modules Longevity till 2025. Recommended to push SC682A for new designs

Learn More

Datasheet

30In Stock

Cut Tape

₹13,543.29

Reel

₹13,543.29

Min.: 1
Mult.: 1

Reel: 200

Multiprotocol Modules

Bluetooth 4.2, GNSS, LTE Cat 6

ADC, Audio, GPIO, I2C, MIPI-CSI, MIPI-DSI, PWM, SD Card, SPI, UART, USB 2.0, Video

Bluetooth 4.2

LTE Cat 6

GNSS

Mobile Modules Cat M1/Cat NB2, Super Compact Size, Power Class 5 + GNSS (w/o WWAN concurrency)

BG77LA-64-SGNS
Quectel
1: ₹2,403.81
46In Stock

Mfr. Part No.
BG77LA-64-SGNS

Mouser Part No
277-BG77LA-64-SGNS

Quectel

Mobile Modules Cat M1/Cat NB2, Super Compact Size, Power Class 5 + GNSS (w/o WWAN concurrency)

Learn More

Datasheet

46In Stock

More Info Available

Cut Tape

₹2,403.81

₹2,098.44

₹1,993.17

₹1,847.88

₹1,760.88

Reel

₹1,699.98

Min.: 1
Mult.: 1

Reel: 500

Cellular Modules

GNSS, LTE CatM1, LTE Cat NB2

I2C, GPIO, PCM, UART, USB

LTE Cat-M1, LTE Cat NB2

GNSS

Mobile Modules Cat M1/Cat NB2, mPCIe form factor

BG96MC-MINIPCIE
Quectel
1: ₹3,794.94
21In Stock

Mfr. Part No.
BG96MC-MINIPCIE

Mouser Part No
277-BG96MC-MINIPCIE

Quectel

Mobile Modules Cat M1/Cat NB2, mPCIe form factor

Learn More

Datasheet

21In Stock

Cut Tape

₹3,794.94

₹3,162.45

Reel

₹2,966.70

View

Min.: 1
Mult.: 1

Reel: 100

Cellular Modules

EGPRS, GNSS, LTE CatM1, LTE Cat NB1

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

I2C, PCIe, PCM, UART, USB 2.0

EGPRS, LTE Cat-M1, LTE Cat NB1

GNSS

Mobile Modules Cat 1 + 3G + 2G, mPCIe form factor, EMEA

EC21EUGA-MINIPCIE
Quectel
1: ₹5,119.08
15In Stock

Mfr. Part No.
EC21EUGA-MINIPCIE

Mouser Part No
277-EC21EUGAMINIPCIE

Quectel

Mobile Modules Cat 1 + 3G + 2G, mPCIe form factor, EMEA

Learn More

Datasheet

15In Stock

More Info Available

Cut Tape

₹5,119.08

₹4,272.57

₹4,271.70

Reel

₹3,972.42

₹3,867.15

View

Min.: 1
Mult.: 1

Reel: 100

Cellular Modules

GNSS, LTE Cat 1

ADC, I2C, PCM, SDIO, SGMII, UART, USB 2.0

LTE Cat 1

GNSS

Multiprotocol Modules Cat 4 + 3G, 4Gbit ROM+2Gbit RAM, North America, mPCIe form factor

EC25AFA-MINIPCIE
Quectel
1: ₹5,191.29
28In Stock

Mfr. Part No.
EC25AFA-MINIPCIE

Mouser Part No
277-EC25AFA-MINIPCIE

Quectel

Multiprotocol Modules Cat 4 + 3G, 4Gbit ROM+2Gbit RAM, North America, mPCIe form factor

Learn More

Datasheet

28In Stock

More Info Available

Cut Tape

₹5,191.29

₹4,333.47

Reel

₹4,029.84

Min.: 1
Mult.: 1

Reel: 100

Multiprotocol Modules

GNSS, LTE Cat 4

700 MHz to 5 GHz

I2C, PCIe, PCM, UART, USB 2.0

LTE Cat 4

GNSS

Multiprotocol Modules CAT 4

EC25AUTFA-512-STD
Quectel
1: ₹5,578.44
39In Stock

Mfr. Part No.
EC25AUTFA-512-STD

Mouser Part No
277-EC25AUTFA512STD

Quectel

Multiprotocol Modules CAT 4

Learn More

Datasheet

39In Stock

Cut Tape

₹5,578.44

₹4,892.01

₹4,654.50

₹4,329.12

Reel

₹4,118.58

Min.: 1
Mult.: 1

Reel: 250

Multiprotocol Modules

GNSS, LTE Cat 4

ADC, I2C, PCM, SDIO, SGMII, UART, USB 2.0

LTE Cat 4

GNSS

Multiprotocol Modules Cat 4 + 3G + 2G module, mPCIe form factor, EMEA, South Korea, Thailand, India

EC25EFA-MINIPCIE
Quectel
1: ₹6,192.66
4In Stock

Mfr. Part No.
EC25EFA-MINIPCIE

Mouser Part No
277-EC25EFA-MINIPCIE

Quectel

Multiprotocol Modules Cat 4 + 3G + 2G module, mPCIe form factor, EMEA, South Korea, Thailand, India

Learn More

Datasheet

4In Stock

More Info Available

Cut Tape

₹6,192.66

₹5,073.84

Reel

₹4,671.03

₹4,577.07

View

Min.: 1
Mult.: 1

Reel: 100

Multiprotocol Modules

GNSS, LTE Cat 4

698 MHz to 960 MHz, 1.561 GHz, 1.575 GHz, 1.7 GHz to 2.7 GHz, 2.4 GHz to 2.5 GHz

I2C, PCIe, PCM, UART, USB 2.0

LTE Cat 4

GNSS

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, G voice + data, Global, mPCIe form factor

EG25GGB-MINIPCIE
Quectel
1: ₹7,388.04
12In Stock
300On Order

Mfr. Part No.
EG25GGB-MINIPCIE

Mouser Part No
277-EG25GGB-MINIPCIE

Quectel

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, G voice + data, Global, mPCIe form factor

Learn More

Datasheet

12In Stock

300On Order

Cut Tape

₹7,388.04

₹6,491.94

₹6,182.22

Reel

₹5,757.66

Quote

Min.: 1
Mult.: 1

Reel: 100

Cellular Modules

UART, USB

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, Voice + Data, Global, mPCIe form factor

EG25GGB-MINIPCIE-S
Quectel
1: ₹7,462.86
51In Stock

Mfr. Part No.
EG25GGB-MINIPCIE-S

Mouser Part No
277-EG25GGBMINIPCIES

Quectel

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, Voice + Data, Global, mPCIe form factor

Learn More

Datasheet

51In Stock

More Info Available

Cut Tape

₹7,462.86

₹6,558.06

₹6,244.86

Reel

₹5,816.82

Quote

Min.: 1
Mult.: 1

Reel: 100

Cellular Modules

UART, USB

Mobile Modules Cat 1 + 3G + 2G, 4Gbit ROM+2Gbit RAM, EMEA only

EG91EFB-512-SNND
Quectel
1: ₹5,456.64
2In Stock

Mfr. Part No.
EG91EFB-512-SNND

Mouser Part No
277-EG91EFB-512-SNND

Quectel

Mobile Modules Cat 1 + 3G + 2G, 4Gbit ROM+2Gbit RAM, EMEA only

Learn More

Datasheet

2In Stock

Cut Tape

₹5,456.64

₹4,788.48

₹4,556.19

₹4,239.51

Reel

₹4,027.23

View

Min.: 1
Mult.: 1

Reel: 250

Cellular Modules

Audio, I2C, SPI, UART, USB

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, voice + data, Global

EG25GGB-256-SGNS
Quectel
1: ₹6,830.37

Mfr. Part No.
EG25GGB-256-SGNS

Mouser Part No
277-EG25GGB-256-SGNS

Quectel

Mobile Modules Cat 4 + 3G + 2G, 2Gbit ROM+2Gbit RAM, voice + data, Global

Learn More

Datasheet

More Info Available

Cut Tape

₹6,830.37

₹6,002.13

₹5,715.03

₹5,322.66

Reel

₹4,704.96

Min.: 1
Mult.: 1

Reel: 250

Cellular Modules

I2C, UART, USB

Multiprotocol Modules Cat M1/Cat NB2/EGPRS + GNSS (w/o WWAN concurrency), no VoLTE

BG600LM3AA-D08-SGNSA
Quectel
1: ₹2,591.73

Mfr. Part No.
BG600LM3AA-D08-SGNSA

Mouser Part No
277-600LM3AAD08SGNSA

Quectel

Multiprotocol Modules Cat M1/Cat NB2/EGPRS + GNSS (w/o WWAN concurrency), no VoLTE

Learn More

Datasheet

More Info Available

Cut Tape

₹2,591.73

₹2,262.87

₹2,148.90

₹1,992.30

Reel

₹1,899.21

₹1,833.09

Min.: 1
Mult.: 1

Reel: 250

Multiprotocol Modules

EGPRS, GNSS, LTE CatM1, LTE Cat NB2

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

ADC, GPIO, I2C, PCM, UART, USB 2.0

EGPRS, LTE Cat-M1, LTE Cat NB2

GNSS

Multiprotocol Modules Cat M1/Cat NB2/EGPRS, Power Class 5 (21dBm) + GNSS (w/o WWAN concurrency), Data ONLY!

BG95M3LA-64-SGNS
Quectel
1: ₹2,442.96
116In Stock

Mfr. Part No.
BG95M3LA-64-SGNS

Mouser Part No
277-BG95M3LA-64-SGNS

Quectel

Multiprotocol Modules Cat M1/Cat NB2/EGPRS, Power Class 5 (21dBm) + GNSS (w/o WWAN concurrency), Data ONLY!

Learn More

Datasheet

116In Stock

More Info Available

Cut Tape

₹2,442.96

₹2,133.24

₹2,026.23

₹1,879.20

Reel

₹1,749.57

View

Min.: 1
Mult.: 1

Reel: 250

Multiprotocol Modules

BDS, EGPRS, Galileo, GLONASS, GPS, LTE Cat M1/NB2

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

GPIO, I2C, UART, USB

EGPRS, LTE Cat M1/NB2

BDS, Galileo, GLONASS, GPS

Mobile Modules Cat 1 + 3G + 2G, 4Gbit ROM+2Gbit RAM, EMEA+India

EC21EFA-MINIPCIE
Quectel
1: ₹5,433.15

Mfr. Part No.
EC21EFA-MINIPCIE

Mouser Part No
277-EC21EFA-MINIPCIE

Quectel

Mobile Modules Cat 1 + 3G + 2G, 4Gbit ROM+2Gbit RAM, EMEA+India

Learn More

Datasheet

More Info Available

Cut Tape

₹5,433.15

₹4,537.92

₹4,535.31

Reel

₹4,226.46

₹4,220.37

View

Min.: 1
Mult.: 1

Reel: 100

Cellular Modules

GNSS, LTE Cat 1

ADC, I2C, PCM, SDIO, SGMII, UART, USB 2.0

LTE Cat 1

GNSS

Multiprotocol Modules Cat 4 + 3G + 2G module, mPCIe form factor, EMEA, Thailand

EC25EUGA-MINIPCIE
Quectel
1: ₹5,639.34

Mfr. Part No.
EC25EUGA-MINIPCIE

Mouser Part No
277-EC25EUGAMINIPCIE

Quectel

Multiprotocol Modules Cat 4 + 3G + 2G module, mPCIe form factor, EMEA, Thailand

Learn More

Datasheet

More Info Available

Cut Tape

₹5,639.34

₹4,945.08

₹4,704.96

Reel

₹4,376.10

₹4,163.82

Min.: 1
Mult.: 1

Reel: 100

Multiprotocol Modules

GNSS, LTE Cat 4

1.16 GHz to 1.27 GHz, 1.56 GHz to 1.605 GHz

I2C, PCIe, PCM, UART, USB 2.0

LTE Cat 4

GNSS

Multiprotocol Modules Cat 1 + 3G + 2G, 1Gbit ROM+1Gbit RAM, Global

EG21GGB-128-SGNS
Quectel
1: ₹6,015.18

Mfr. Part No.
EG21GGB-128-SGNS

Mouser Part No
277-EG21GGB-128-SGNS

Quectel

Multiprotocol Modules Cat 1 + 3G + 2G, 1Gbit ROM+1Gbit RAM, Global

Learn More

Datasheet

More Info Available

Cut Tape

₹6,015.18

₹5,274.81

₹5,018.16

₹4,668.42

Reel

₹4,441.35

Min.: 1
Mult.: 1

Reel: 250

Multiprotocol Modules

GNSS, LTE Cat 1

ADC, I2C, PCM, SD Card, SGMII, UART, USB 2.0

LTE Cat 1

GNSS

GNSS / GPS Modules Single band, 3 GNSS, w/ LNA (Airoha 3333)

L26-M33
Quectel
1: ₹967.44
Non-Stocked Lead-Time 8 Weeks
NRND

Mfr. Part No.
L26-M33

Mouser Part No
277-L26-M33

NRND

Quectel

GNSS / GPS Modules Single band, 3 GNSS, w/ LNA (Airoha 3333)

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

Cut Tape

₹967.44

₹841.29

₹796.92

₹736.89

Reel

₹736.02

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 250

GPS Modules

1.57542 GHz

UART

GNSS

Multiprotocol Modules GSM/GPRS, Quad-band, LCC form factor, Ultra-small

M66FB-03-STD
Quectel
1: ₹1,267.59
Lead-Time 12 Weeks
NRND

Mfr. Part No.
M66FB-03-STD

Mouser Part No
277-M66FB-03-STD

NRND

Quectel

Multiprotocol Modules GSM/GPRS, Quad-band, LCC form factor, Ultra-small

Learn More

Datasheet

Lead-Time 12 Weeks

Cut Tape

₹1,267.59

₹1,098.81

₹1,039.65

₹958.74

Reel

₹649.89

View

Min.: 1
Mult.: 1

Reel: 250

Multiprotocol Modules

Bluetooth 3.0, GSM/GPRS

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

ADC, Audio, Bluetooth PCM, UART

Bluetooth 3.0

GSM/GPRS

Multiprotocol Modules Longevity extended till 2028. Recommended to push SC682A for new designs

SC600YEMPA-E53-UGADA
Quectel
600: ₹13,707.72
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
SC600YEMPA-E53-UGADA

Mouser Part No
277-600YEMPAE53UGADA

Quectel

Multiprotocol Modules Longevity extended till 2028. Recommended to push SC682A for new designs

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

Cut Tape

₹13,707.72

Min.: 600
Mult.: 200

Reel: 200

Multiprotocol Modules

Bluetooth 4.2, GNSS, LTE Cat 6

850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz

ADC, Audio, GPIO, I2C, MIPI-CSI, MIPI-DSI, PWM, SD Card, SPI, UART, USB 2.0, Video

Bluetooth 4.2

LTE Cat 6

GNSS

Multiprotocol Modules Longevity extended till 2028. Recommended to push SC682A for new designs

SC600YJPPA-E53-UGADA
Quectel
600: ₹13,624.20
Non-Stocked Lead-Time 8 Weeks

Mfr. Part No.
SC600YJPPA-E53-UGADA

Mouser Part No
277-600YJPPAE53UGADA

Quectel

Multiprotocol Modules Longevity extended till 2028. Recommended to push SC682A for new designs

Learn More

Datasheet

Non-Stocked Lead-Time 8 Weeks

Cut Tape

₹13,624.20

Min.: 600
Mult.: 200

Reel: 200

Multiprotocol Modules

Bluetooth 4.2, GNSS, LTE Cat 6

ADC, Audio, GPIO, I2C, MIPI-CSI, MIPI-DSI, PWM, SD Card, SPI, UART, USB 2.0, Video

Bluetooth 4.2

LTE Cat 6

GNSS

Wireless communication module Wireless & RF Modules

Types of Wireless & RF Modules

Customer Service Office

Company

Resources

Support

698 MHz to 5.85 GHz
698 MHz to 960 MHz, 1.561 GHz to 1.571 GHz, 1.602 GHz to 1.606 GHz, 1.7 GHz to 2.7 GHz
698 MHz to 960 MHz, 1.561 GHz, 1.575 GHz, 1.7 GHz to 2.7 GHz, 2.4 GHz to 2.5 GHz
700 MHz to 2.7 GHz
700 MHz to 5 GHz
700 MHz to 960 MHz
700 MHz to 960 MHz, 1.7 GHz to 2.7 GHz
700 MHz to 960 MHz, 1.71 GHz to 2.69 GHz
800 MHz to 1 GHz, 1.7 GHz to 1.9 GHz
824 MHz to 960 MHz, 1.561 GHz, 1.57542 GHz, 1.71 GHz to 2.69 GHz, 2.4 GHz to 2.5 GHz
824 MHz to 960 MHz, 1.71 GHz to 2.69 GHz
850 MHz, 1.9 GHz
850 MHz, 900 MHz, 1.8 GHz, 1.9 GHz
900 MHz, 1.8 GHz
1.16 GHz to 1.27 GHz, 1.56 GHz to 1.605 GHz
1.17645 GHz, 1.561098 GHz, 1.57542 GHz, 1.6025625 GHz
1.559 GHz to 1.606 GHz
1.561098 GHz, 1.57542 GHz, 1.6025625 GHz
1.57542 GHz
1.57542 GHz, 1.60171 GHz

ADC, Audio, Bluetooth PCM, UART
ADC, Audio, Camera, GPIO, I2C, SPI, UART, USB
ADC, Audio, GPIO, I2C, MIPI-CSI, MIPI-DSI, PWM, SD Card, SPI, UART, USB 2.0, Video
ADC, Audio, PCM, SDIO, UART, USB 2.0
ADC, Audio, UART
ADC, GPIO, I2C, PCM, UART, USB 2.0
ADC, GPIO, PCM, UART, USB 2.0
ADC, GPIO, UART, USB
ADC, I2C, PCM, SD Card, SGMII, UART, USB 2.0
ADC, I2C, PCM, SDIO, SGMII, UART, USB 2.0
ADC, I2C, PCM, SDIO, UART, USB 2.0
ADC, I2C, PCM, SPI, UART, USB 2.0
Audio, I2C, SPI, UART, USB
GPIO, I2C, UART, USB
I2C, GPIO, PCM, UART, USB
I2C, PCIe, PCM, UART, USB 2.0
I2C, UART
I2C, UART, USB
I2C, USB
SDIO