It is important to have the best serial modem. Let’s take you step by step, type by type, and find the best serial modem for you.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Motorola Serial Modem READ REVIEW

Best For Faster Speed: Buy: Arris Serial Modem READ REVIEW

Best With Midco: Buy: Amazon Renewed Serial Modem READ REVIEW

Best For Battery Life: Buy: Netgear Serial Modem READ REVIEW

Best For External Fax Server: Buy: Zoom Serial Modem READ REVIEW

Best For Pc: Buy: Usrobotics Serial Modem READ REVIEW

Best For High Performance: Buy: Usr Serial Modem READ REVIEW

Best With Compatible Software: Buy: Ostent Serial Modem READ REVIEW

Best Overall: Motorola Serial Modem

Buy on Amazon

Not everyone likes to purchase a modem for their daily purpose, but the Motorola Serial Modem would be an anomoly. The motorola serial modem is recommended for actual cable internet service speeds up to 650 mbps. This flexible approach lets you pair this cable modem with any router you choose for your wifi needs, including a mesh router or gaming router. This cable modem does not have a built - in wireless router or telephone call capability.

Above all, the motorola serial modem is great for use with whole home wifi or mesh networks like eero, google wifi, and orbi.

Most customers agree that the modem will be useful once port bonding becomes available with service providers and routers supporting port bonding are widely available. Also, a few also found that the modem is advertised as providing up to 250mbps (thats megabits) download speeds. And, they say that the modem is not a windows 10 / microsoft edge issue.

• This is great for future proof with 24x8.
• The modem would reboot itself 6 to 8 times a day.
• This works with suddenlink dec 2021.
• The modem 's status page shows 32 connected downstream channels and 4 connected upstream.

Best For Faster Speed: Arris Serial Modem

Buy on Amazon

The best part: Arris serial modem costs comparatively little and it is available to ship in 24 hours. The Arris serial modem has 2 gigabit ethernet ports. Power your home network with the sb8200 and get the fastest speeds and most reliable connection to the internet. Further, the modem is best for cable internet speed plans up to 2 gbps.

The modem is inexpensive, is designed for fast speed and it back online. Finally, the Arris serial modem is capable of the fastest speeds available by cable internet service providers, perfect for things like 4k ultra-hd video streaming and virtual reality gaming.

Most buyers found that the modem is great for the 1 gigabit internet package. Also, a few also found that the modem works with Wow internet and also works for Cox gigablast. Further, a few strongly agree that the speed number for the router in the model name is a marketing thing which stands for 5th gen, so you will most likely have a 2.4gigz band and 5ghz band. In short, the tone of buyers is very positive and we believe that the modem suits the purpose.

• This works well for fast internet and it can make for smooth sailing.
• Introducing the first docsis 3.1 cable modem in the surfboard lineup.
• This is highly recommended and it is used for easy setup.
• This includes a patch cable plus includes phone service.

Best With Midco: Amazon Renewed Serial Modem

Buy on Amazon

The Amazon Renewed Serial Modem's material feels more premium than its price would suggest. The amazon renewed serial modem works perfectly and it provides great value. Make sure this fits by entering your model number. Moreover, this makes for a great buy and it is blazing fast.

Above all, the amazon renewed serialmodem is made for ease of setup and it is very easy too.

Most customers agree that the modem has a category for wifi signal in rating which doesn't make sense. And, they strongly agree that the modem does indeed have a "refurbished in Mexico" sticker on it. And, they strongly agree that the modem has provided that at a satisfactory level. Overall, buyers found this to be one of the best modems for daily purposes.

• This is a self-install to replace a comcast teleworker account with a new xfinity account.
• This will use that then get a better modern. If not, it's a waste.
• It offers two types of services.
• This is perfect with an xfinity gigabit connection.

Best For Battery Life: Netgear Serial Modem

Buy on Amazon

Not everyone likes to purchase a modem for their regular usage, but the Netgear Serial Modem would be an anomoly. The netgear serial modem is highly recommend, works perfectly and it is safe. Blast past your limitations and maximize your internet speeds up to 150mbps to experience fast download speeds for ultimate streaming and gaming. The netgear lm1200 4 g lte modem is ready out of the box and works with all major service providers.

The modem fits well for a cheaper price and it works for mobile networks. In addition, this is great for a fair price, works flawlessly and it is built with good service. Most importantly, the netgear serial modem is reasonable and it is perfect for working from home.

Most customers opine that the modem offers an unlimited plan for a hotspot. In addition, they also found that the modem would not work with any type of plan that has voice on it. In addition, a few say that the charger that comes with the modem uses the TX / rx lines to make the modem think its tethered via usb if the battery is not installed. Without any doubt, this modem passed the test and had very satisfied buyers eager to share their experience.

• This is used for email and streaming videos, it connects and will not be replaced.
• This is great with the 100gb plan.
• This provides an even stronger signal.
• This is super easy and it is made for good value.

Best For External Fax Server: Zoom Serial Modem

Buy on Amazon

Zoom has been making great modems for years, thanks to a combination of clever design and appropriate materials. The Zoom Serial Modem has a plug n play and it works great. Make sure this fits by entering your model number. And, it is fully compatible with all features of the latest v.92/v.44 international standards and will also communicate at v.90 and slower speeds.

Above all, the zoom serialmodem worked fine, works fine and it is great with a magic jack.

Most buyers found that the modem is good for external fax server.s. Also, a few strongly agree that the modem is one of the best modems for a Linux hylafax server, They support every function and work like a charm. And, they say that the modem is great for hylafax on debian gnu/linux.

• Itu-t v.92, itu-t v.90, itu-t v.34 modulation.
• 14.4 kbit/s fax transmission data rate.
• This is made for easy install and it works great.

Best For Pc: Usrobotics Serial Modem

Buy on Amazon

The Usrobotic line of modems comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. Furthermore, it works great and it stopped working. Make sure this fits by entering your model number. Most importantly, the Usrobotics Serial Modem has bought for high power, allows for easy installation and it is very good.

Almost all buyers found that the modem is a good working used unit. And, they strongly agree that the modem provides very sub-par support. Overall, the tone of buyers is very positive and we believe that the modem suits the purpose.

• This comes with an rj11 telephone cord.
• Lot of satisfied buyers.

Best For High Performance: Usr Serial Modem

Buy on Amazon

The current serial modem's material feels more premium than its price would suggest. The USR serial modem is industrial serial rs232 rs485 to 4g lte modem with ethernet /lan port and sim card slot. Make sure this fits by entering your model number. Further, it is a high performance processor.

The modem has a built-in webpage configuration and it is anti-static. Lastly, the USR serial modem is reliable, putting an end to dead link.

• Serial port protection: reverse connection projection, esd anti-surge, anti-static, surge protection.
• Arm high performance processor, supports 4 socket independent connection.
• Identity /registration packet: identified header can be added to packets to check connection status.
• This can be sent to serial or network periodic.

Best With Compatible Software: Ostent Serial Modem

Buy on Amazon

Next on the list, we've got yet another modem that manages to win our hearts. It's the Ostent Serial Modem and it's widely considered as one of the most convenient modems you can buy. Moreover, it can be used to send sms and mms in bulk. Make sure this fits by entering your model number. Most importantly, the ostent serial modem includes sms studio, sms caster, sms deliverer.

• Compatible software: any software supported at commands, includes sms studio, sms caster, sms deliverer.
• Good investment for the long term.