Does it work with Linux?

Sort of..... depending upon the version you get which determines the configuration it needs to be used with Linux and how useful they are. These sticks come in 2 flavors, configured for serial mode or configured for highlink mode. The ones like the one I received are configured in highlink mode and present themselves as a usb Ethernet interface. In this mode the stick presents itself as a nat router that serves dhcp and presents a config web page. This works fine if all you ever want to do is browse the web or possibly make outbound connections. The pseudo Ethernet and router function however serves to choke your throughput. What you really want though is one of these that is configured for serial mode, ie the version with serial mode firmware loaded. This gets rid of the nat and the modem / stick is configured with standard PPP. This allows for inbound connections, full ipv6 config and a lot more utility. My suggestion - do a bit of hunting and find one preloaded with stick mode serial firmware. While the hilink sticks like this one work, they are less useful under Linux, (and windows as well, but your average windows user may have trouble getting the stick mode serial device working as its not just plug and go). On both os stick mode will serve you better but require significant configuration and knowledge to get it working the first time. I returned mine.

Does this work with both cdma and gsm?

It doesn't support CDMA. Please find more info below FYI. The Huawei E3372 can also work with UMTS networks including DC-HSPA+ with up to 42.2 Mbit/s in the downlink and 5.76 Mbit/s in the uplink when LTE network is not available. And the GSM and EDGE networks are supported. The LTE modem could support the frequency ranges of 800, 900, 1800, 2100 and 2600 megahertz (both FDD LTE), making it well suited for use in Europe. If you use it in America, it can be only conditionally recommended. In UMTS, it supports dual band (900/2100MHz) and in GSM supports Quadband.

Can someone explain how this works? Does it require a data only sim card?

To get it to work you will need a SIM card with an activated data plan. More items from us: www.amazon.com/shops/mobile_assistant

Does this work on usa t mobile?

I have had one of these for more than a few years, and I have used it from time to time. I used it 2 months ago (November 2022) and I got the solid Blue light, which was 4G, but after no use for 2 months, same carrier, same software installed, Tello US, a T Mobile MVNO, it is now giving me a Green light, meaning 2G only. And as a result it is VERY slow now. Same software, same SIM, but now only 2G. Also I tried putting the IMEI into the T Mobile website and I get a message that this device has only LIMITED support, so things have changed since last time I used it. Because I can now only get 2G, I can't recommend this to anyone. I am looking at another brand, ZTE, or just maybe not replace it at all. I wanted to have a way to access internet if my electric goes out without using a cell phone as a wifi hotspot, but I may just give up on it since the ZTE item has many unfavorable reviews. The primary issue appears to be that this E3372 does NOT support a 64 bit system, it was designed back in the days of 32 bit PCs or MACs and has never had the software updated. I had a Macbook Air for a while before I sold it, and the MAC does not support 32 bit anything at all, so this could not be used.

ASIN	B013UURTL4
Antenna Location	Home
Antenna Type	Fixed
Best Sellers Rank	#12,771 in Computers ( See Top 100 in Computers ) #98 in USB Computer Network Adapters
Brand	HUAWEI
Built-In Media	User Manual, Carrying Case
Color	White
Compatible Devices	Laptop, Personal Computer, Smart Television, Smartphone
Compatible devices	Laptop, Personal Computer, Smart Television, Smartphone
Connectivity Technology	USB
Control Method	Touch
Coverage	4G LTE: Europe, Asia, Middle East and Africa
Customer Reviews	4.0 out of 5 stars 2,443 Reviews
Data Transfer Rate	153600 Gigabits Per Second
Frequency	2600
Frequency Band Class	Single-Band
Frequency band class	Single-Band
Global Trade Identification Number	06901443060863
Is Modem Compatible	Yes
Item Dimensions L x W x H	8.8L x 2.8W x 1.1H centimeters
Item Weight	30 Grams
Item height	11 millimeters
LAN Port Bandwidth	10/100 megabits per second
Manufacturer	Huawei Deutschland
Maximum Upstream Data Transfer Rate	50 Megabits Per Second
Model Name	E3372 LTE Modem
Model Number	E3372
Model name	E3372 LTE Modem
Number of Antennas	1
Operating System	Windows, WindowsXP, Vista, Windows7/8, MAC, Win Blue
Other Special Features of the Product	WPS
RAM Memory Installed	8 GB
Security Protocol	WPA2-PSK
Special features	WPS
UPC	601285983288
Unit Count	1.0 Count
Voltage	220 Volts
Wireless Compability	DECT
Wireless communication standard	DECT

HUAWEI E3372 Lte 4G Cat4 USB Modem (E3372H-153), 30g

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