MSI TEC is now an ASUS IoT partner!

More advanced for flexible applications – saving space, saving,
wiring time and providing higher resistance to environments.

Learn More

Industrial PCs Made
To Last

A new generation of industrial computers: BXP, DRP, and RKP Series. Reliable, adaptable, and cost-effective computing solution

View Products

Unlock Your Network's IIoT Potential

Moxa industrial managed switches offer extra
reliability for edge productivity.

Shop Ethernet Switches

Moxa's Ultra Compact EDS-2000-EL Switches

Adapt to changes with big gains with a 48% smaller footprint that gives you more options.

Shop Now

Networking Evolved.

Introducing Moxa's new EDS-4000/G4000 Managed Switches

Learn More

Excess Inventory Sale!

Shop our Excess Inventory Sale and save big! All products are drastically reduced and in stock, ready to ship.

Click Here

Shop Online

Search by Category:

Explore all products

EDS-2008-EL-M-ST

$232.75

8-Port Entry-level Unmanaged Switch, 7 Fast TP ports, 1 multi-mode port, ST, -10 to 60?C

EDS-2008-EL-M-ST-T

$289.50

8-Port Entry-level Unmanaged Switch, 7 Fast TP ports, 1 multi-mode port, ST, -40 to 75?C

EDS-2008-EL-T

$200.25

8-Port Entry-level Unmanaged Switch, 8 Fast TP ports, -40 to 75?C

EDS-2008-ELP

$128.25

8-Port Entry-level Unmanaged Switch, 8 Fast TP ports, -10 to 60?C

EDS-2008-ELP Series

From $128.25

8-port entry-level unmanaged Ethernet switches with plastic housing

EDS-2010-ML Series

From $420.75

8+2G-port Gigabit unmanaged Ethernet switches

EDS-2010-ML-2GTXSFP

$420.75

Unmanaged Gigabit Ethernet switch with 8 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -10 to 60?C operating temperature

EDS-2010-ML-2GTXSFP-T

$498.75

Unmanaged Gigabit Ethernet switch with 8 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -40 to 75?C operating temperature

EDS-2016-ML

$427.25

Unmanaged Ethernet switch with 16 10/100BaseT(X) ports, and -10 to 60?C operating temperature

EDS-2016-ML Series

From $427.25

Moxa 16-port unmanaged Ethernet switches

EDS-2016-ML-MM-SC

$608.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with SC connectors, and -10 to 60?C operating temperature

EDS-2016-ML-MM-SC-T

$685.75

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with SC connectors, and -40 to 75?C operating temperature

EDS-2016-ML-MM-ST

$608.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with ST connectors, and -10 to 60?C operating temperature

EDS-2016-ML-MM-ST-T

$685.75

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with ST connectors, and -40 to 75?C operating temperature

EDS-2016-ML-SS-SC

$886.25

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX single-mode ports with SC connectors, and -10 to 60?C operating temperature

EDS-2016-ML-SS-SC-T

$964.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX single-mode ports with SC connectors, and -40 to 75?C operating temperature

EDS-2016-ML-T

$505.00

Unmanaged Ethernet switch with 16 10/100BaseT(X) ports, and -40 to 75?C operating temperature

EDS-2018-ML-2GTXSFP

$634.50

Unmanaged Gigabit Ethernet switch with 16 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -10 to 60?C operating temperature

EDS-2018-ML-2GTXSFP-T

$712.25

Unmanaged Gigabit Ethernet switch with 16 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -40 to 75?C operating temperature

EDS-205

$113.49

Entry-level Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, -10 to 60?C

EDS-208 Series

From $143.90

5-port and 8-port entry-level unmanaged Ethernet switches

EDS-208

$162.60

Entry-level Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -10 to 60?C

EDS-208-M-SC

$252.14

Entry-level Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -10 to 60?C

EDS-208-M-ST

$252.14

Entry-level Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, -10 to 60?C

EDS-208A

$193.74

Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, -10?to 60?C operating?temperature

EDS-208A Series

From $161.75

8-port compact unmanaged Ethernet switches

EDS-208A-M-SC

$305.44

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connectors, -10 to 60°C operating temperature

EDS-208A-M-SC-T

$335.08

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connectors, -40 to 75°C operating temperature

EDS-208A-M-ST

$305.44

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connectors, -10 to 60°C operating temperature

EDS-208A-M-ST-T

$335.08

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connectors, -40 to 75°C operating temperature

EDS-208A-MM-SC

$492.00

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -10 to 60?C operating temperature

EDS-208A-MM-SC-T

$532.12

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75?C operating temperature

EDS-208A-MM-ST

$492.00

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -10 to 60?C operating temperature

EDS-208A-MM-ST-T

$545.30

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -40 to 75°C operating temperature

EDS-208A-S-SC

$558.77

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -10 to 60°C operating temperature

EDS-208A-S-SC-T

$598.60

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -40 to 75°C operating temperature

EDS-208A-SS-SC

$798.63

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode port with SC connector, -10 to 60°C operating temperature

EDS-208A-SS-SC-T

$931.89

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, -40 to 75°C operating temperature

EDS-208A-T

$265.31

Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, -40 to 75°C operating temperature

EDS-305

$332.09

Industrial Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, 0 to 60°C

EDS-305-M-SC

$492.00

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-M-SC-T

$532.12

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -40 to 75°C

EDS-305-M-ST

$398.57

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, 0 to 60°C

EDS-305-M-ST-T

$478.52

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, -40 to 75°C

EDS-305-S-SC

$745.33

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-S-SC-80

$1,865.27

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 long-haul (80 km) single mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-S-SC-T

$798.63

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -40 to 75°C

EDS-305-T

$371.92

Industrial Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, -40 to 75°C

EDS-308

$438.69

Industrial Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -10 to 60°C

EDS-308 Series

From $388.23

8-port unmanaged Ethernet switches

EDS-308-M-SC

$532.12

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-M-SC-T

$598.60

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -40 to 75°C

EDS-308-MM-SC

$598.60

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-MM-SC-T

$665.38

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, SC connector, -40 to 75°C

EDS-308-MM-ST

$598.60

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, ST connector, -10 to 60°C

EDS-308-MM-ST-T

$665.38

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, ST connector, -40 to 75°C

EDS-308-S-SC

$665.38

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-S-SC-80

$1,998.53

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 long-haul (80 km) single mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-S-SC-T

$731.86

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -40 to 75°C

EDS-308-SS-SC

$865.41

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 single mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-SS-SC-80

$2,660.01

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 long-haul (80 km) single mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-SS-SC-T

$998.67

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 single mode 100BaseFX ports, SC connector, -40 to 75°C

EDS-308-T

$465.35

Industrial Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -40 to 75°C

EDS-309 Series

From $611.00

9-port unmanaged Ethernet switches

EDS-2008-EL-M-ST

$232.75

8-Port Entry-level Unmanaged Switch, 7 Fast TP ports, 1 multi-mode port, ST, -10 to 60?C

EDS-2008-EL-M-ST-T

$289.50

8-Port Entry-level Unmanaged Switch, 7 Fast TP ports, 1 multi-mode port, ST, -40 to 75?C

EDS-2008-EL-T

$200.25

8-Port Entry-level Unmanaged Switch, 8 Fast TP ports, -40 to 75?C

EDS-2008-ELP

$128.25

8-Port Entry-level Unmanaged Switch, 8 Fast TP ports, -10 to 60?C

EDS-2008-ELP Series

From $128.25

8-port entry-level unmanaged Ethernet switches with plastic housing

EDS-2010-ML Series

From $420.75

8+2G-port Gigabit unmanaged Ethernet switches

EDS-2010-ML-2GTXSFP

$420.75

Unmanaged Gigabit Ethernet switch with 8 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -10 to 60?C operating temperature

EDS-2010-ML-2GTXSFP-T

$498.75

Unmanaged Gigabit Ethernet switch with 8 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -40 to 75?C operating temperature

EDS-2016-ML

$427.25

Unmanaged Ethernet switch with 16 10/100BaseT(X) ports, and -10 to 60?C operating temperature

EDS-2016-ML Series

From $427.25

Moxa 16-port unmanaged Ethernet switches

EDS-2016-ML-MM-SC

$608.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with SC connectors, and -10 to 60?C operating temperature

EDS-2016-ML-MM-SC-T

$685.75

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with SC connectors, and -40 to 75?C operating temperature

EDS-2016-ML-MM-ST

$608.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with ST connectors, and -10 to 60?C operating temperature

EDS-2016-ML-MM-ST-T

$685.75

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX multi-mode ports with ST connectors, and -40 to 75?C operating temperature

EDS-2016-ML-SS-SC

$886.25

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX single-mode ports with SC connectors, and -10 to 60?C operating temperature

EDS-2016-ML-SS-SC-T

$964.00

Unmanaged Ethernet switch with 14 10/100BaseT(X) ports, 2 100BaseFX single-mode ports with SC connectors, and -40 to 75?C operating temperature

EDS-2016-ML-T

$505.00

Unmanaged Ethernet switch with 16 10/100BaseT(X) ports, and -40 to 75?C operating temperature

EDS-2018-ML-2GTXSFP

$634.50

Unmanaged Gigabit Ethernet switch with 16 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -10 to 60?C operating temperature

EDS-2018-ML-2GTXSFP-T

$712.25

Unmanaged Gigabit Ethernet switch with 16 10/100BaseT(X) ports, 2 10/100/1000BaseT(X) or 100/1000BaseSFP ports, and -40 to 75?C operating temperature

EDS-205

$113.49

Entry-level Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, -10 to 60?C

EDS-208 Series

From $143.90

5-port and 8-port entry-level unmanaged Ethernet switches

EDS-208

$162.60

Entry-level Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -10 to 60?C

EDS-208-M-SC

$252.14

Entry-level Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -10 to 60?C

EDS-208-M-ST

$252.14

Entry-level Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, -10 to 60?C

EDS-208A

$193.74

Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, -10?to 60?C operating?temperature

EDS-208A Series

From $161.75

8-port compact unmanaged Ethernet switches

EDS-208A-M-SC

$305.44

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connectors, -10 to 60°C operating temperature

EDS-208A-M-SC-T

$335.08

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with SC connectors, -40 to 75°C operating temperature

EDS-208A-M-ST

$305.44

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connectors, -10 to 60°C operating temperature

EDS-208A-M-ST-T

$335.08

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX multi-mode port with ST connectors, -40 to 75°C operating temperature

EDS-208A-MM-SC

$492.00

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -10 to 60?C operating temperature

EDS-208A-MM-SC-T

$532.12

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with SC connectors, -40 to 75?C operating temperature

EDS-208A-MM-ST

$492.00

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -10 to 60?C operating temperature

EDS-208A-MM-ST-T

$545.30

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX multi-mode ports with ST connectors, -40 to 75°C operating temperature

EDS-208A-S-SC

$558.77

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -10 to 60°C operating temperature

EDS-208A-S-SC-T

$598.60

Unmanaged Ethernet switch with 7 10/100BaseT(X) ports, and 1 100BaseFX single-mode port with SC connector, -40 to 75°C operating temperature

EDS-208A-SS-SC

$798.63

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode port with SC connector, -10 to 60°C operating temperature

EDS-208A-SS-SC-T

$931.89

Unmanaged Ethernet switch with 6 10/100BaseT(X) ports, and 2 100BaseFX single-mode ports with SC connectors, -40 to 75°C operating temperature

EDS-208A-T

$265.31

Unmanaged Ethernet switch with 8 10/100BaseT(X) ports, -40 to 75°C operating temperature

EDS-305

$332.09

Industrial Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, 0 to 60°C

EDS-305-M-SC

$492.00

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-M-SC-T

$532.12

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -40 to 75°C

EDS-305-M-ST

$398.57

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, 0 to 60°C

EDS-305-M-ST-T

$478.52

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, ST connector, -40 to 75°C

EDS-305-S-SC

$745.33

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-S-SC-80

$1,865.27

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 long-haul (80 km) single mode 100BaseFX port, SC connector, 0 to 60°C

EDS-305-S-SC-T

$798.63

Industrial Unmanaged Ethernet Switch with 4 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -40 to 75°C

EDS-305-T

$371.92

Industrial Unmanaged Ethernet Switch with 5 10/100BaseT(X) ports, -40 to 75°C

EDS-308

$438.69

Industrial Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -10 to 60°C

EDS-308 Series

From $388.23

8-port unmanaged Ethernet switches

EDS-308-M-SC

$532.12

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-M-SC-T

$598.60

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 multi mode 100BaseFX port, SC connector, -40 to 75°C

EDS-308-MM-SC

$598.60

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-MM-SC-T

$665.38

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, SC connector, -40 to 75°C

EDS-308-MM-ST

$598.60

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, ST connector, -10 to 60°C

EDS-308-MM-ST-T

$665.38

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 multi mode 100BaseFX ports, ST connector, -40 to 75°C

EDS-308-S-SC

$665.38

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-S-SC-80

$1,998.53

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 long-haul (80 km) single mode 100BaseFX port, SC connector, -10 to 60°C

EDS-308-S-SC-T

$731.86

Industrial Unmanaged Ethernet Switch with 7 10/100BaseT(X) ports, 1 single mode 100BaseFX port, SC connector, -40 to 75°C

EDS-308-SS-SC

$865.41

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 single mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-SS-SC-80

$2,660.01

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 long-haul (80 km) single mode 100BaseFX ports, SC connector, -10 to 60°C

EDS-308-SS-SC-T

$998.67

Industrial Unmanaged Ethernet Switch with 6 10/100BaseT(X) ports, 2 single mode 100BaseFX ports, SC connector, -40 to 75°C

EDS-308-T

$465.35

Industrial Unmanaged Ethernet Switch with 8 10/100BaseT(X) ports, -40 to 75°C

EDS-309 Series

From $611.00

9-port unmanaged Ethernet switches

Our Manufacturing Partners

For product info & pricing:

Call us: (866) 397-7388

Monday - Friday: 8:00 AM - 5:00 PM

Email us

Chat with us

Click the chat button below

Shop Online

Search by Category:

Automation Components (403)

Ethernet Switches (708)

Industrial Computers (424)

Industrial Edge Connectivity (413)

Industrial Networking (850)

Controllers & I/O (150)

Explore all products

Our Manufacturing Partners

For product info & pricing:

Call us: (866) 397-7388

Email us

Chat with us