The 7 Best Serial Port controllers (2023 reviews)

We consider a serial port controller to be a worthy investment in the long run. We are here to help you choose the right one for your purposes from all the best available products in market today.

Our review process: Show/Hide

Our Top Picks:

Best Overall: Buy: Startech Sata III Card READ REVIEW

Best For functionality: Buy: BEYIMEI Serial Port Controller READ REVIEW

Best addon Card: Buy: Syba Serial Port Controller READ REVIEW

Best For externat Drive Storage: Buy: High point Serial Port Controller READ REVIEW

Best With BROAD range Of Operating systems: Buy: Startech Serial Port Controller READ REVIEW

Best For Using extra Ports: Buy: LTERIVER Serial Port Controller READ REVIEW

Best Feature: Easy To recognize: Buy: Febsmart Serial Port Controller READ REVIEW

Best Overall: Startech Sata III Card

Buy on Amazon

Here, we present controller that manages to win our hearts. It's the startech sata iii card and it's widely considered as one of all-around great controller you can buy. The SSD m.2 drives are powered by the pci-e bus which is a supremely clever way of retrofitting m.2 drives to older workstations. The chipsets of the RAID controllers must be the same in order for a set of RAID drives to be recognized when moving them from one controller to another. The card features on board jumper selection, which enables you to configure the card to provide 2 internal or external sata iii ports, or one of each, as needed. It’s a rock solid adapter.

The labels are drawn between the jumpers for the two ports so they're easy to miss. This is a good card if you need extra internal ports or need external ports.

• Great for nvme storage, works for esxi home labs
• Easy to use to add storage to your pc
• Delivers what they promise

Best For functionality: BEYIMEI Serial Port Controller

Buy on Amazon

The beyimei serial port controller is capable of outshining several other controller featured in this list in overall features for the price point. This device works for it's intended function. It leverages 4 lanes. It adds 6 sata ports to the system to expand to more drives. The fact the card has six SATA-III 6Gbps outputs gives plenty of capacity to run additional hardware. It is used to be in external usb arrays. They work 1000% better and no longer suffer random disconnects.

The stability is very good. It is great for functionality out of the box.

• Good value and stable sata card
• Very nice adapter card for nvme drive
• An affordable, ubuntu compatible, sata card

Best addon Card: Syba Serial Port Controller

Buy on Amazon

The syba serial port controller is capable of outshining several other controller featured in this list in overall features for the price point. It is a fine card for old school mechanical drives and cd/dvd reader/writers. It is great for adding two more sata ports, if you own a bunch of hdds/ssds. This card works right off the bat, getting speeds around 110 bps on a slow 5400rpm data drive. It is great with 2 hard drives. It is easy to install and hookup your drives since the ports are on the side. This will make it work for everyone.

• Insert into pci-e slot, connect sata cables, power on, functional
• Nice way to increase internal sata ports
• Easier to just put cd/dvd drives on it and not worry

Best For externat Drive Storage: High point Serial Port Controller

Buy on Amazon

High Point makes beautiful and great controller with classic and smartly choosen materials. The Rocketraid 600 series will support up to 12 TB drives and certain 14TB drives. This is a low performing RAID card. It sits on a Scanning Devices screen for about 20 seconds. It comes with 2 sata cables and an alternative short low-profile mounting bracket. The controller does not affect any of the drives you connect to the motherboard whether ssd or hard drive.

This card maxes out around 380MB/sec. The resiliency is the reason this is a great card. There is some lag time at start up, as the device is configured, but beyond that, it is quick. It is easy to install and configure.

• You can combine with a nice sas external box or raid
• Easy install in windows 7 for basic operation
• Makes overall pc boot sequence very slow
• Great controller, takes a long time for initial format

Best With BROAD range Of Operating systems: Startech Serial Port Controller

Buy on Amazon

We know from years of feedback from readers, customers and amazon sellers, what most people want in a convenient and appropriate controller. The startech serial port controller is exactly that - it's a simple controller that hits all the right notes. The PEX1S553LP will work with RS232 Serial devices, which would include APC models that have serial connectivity. This card can provide power output from the ninth pin of the DB-9 connector for devices that support power over serial. It comes with a mini cd rom that has the xp drivers. It includes an optional full profile bracket.

The card is constructed using a native single chip design that lets you harness the full capability offered by pci express (pcie), while reducing the load applied to the cpu by as much as 48% over conventional bridge chip serial cards. This is easy to install and it comes with clear instructions. It provides the choice of 12v, 5v, or none pin.

• Constructed using a native single chip design
• Works very good with no issues on a dell small form factor pc
• Ships with a low profile/half-height bracket installed, but includes an optional full profile bracket

Best For Using extra Ports: LTERIVER Serial Port Controller

Buy on Amazon

The lteriver serial port controller is suitable and reliable and fits well with your regular usage. The performance of this add-in SATA card outperformed the Supermicro X8SIA motherboard’s Intel 3400 SATA controller. It is detected as a “standard sata achi” controller. This expansion card fits in almost any available slot. It is great for using extra ports for more ssds, hdds, or motherboard rgbs. This card works really well and does indeed provide 6 more SATA III ports.

There is an one-pager of the instruction to guide you to install the host controller, and that is pretty clear imo.

• Faster than motherboard’s intel 3400 sata
• Driver free on mac os x and linux kernel systems
• Works to add lots of storage
• Seamless works on amd, arm, intel and mac hardware platform

Best Feature: Easy To recognize: Febsmart Serial Port Controller

Buy on Amazon

The febsmart serial port controller is the best convenient controller on the market today. It is based in asmedia asm1064 pcie 3.0 to sata iii host controller, will support plug and play on windows os, mac os, and most linux kernel desktop pcs. It correctly passes through SMART data, handles spinups/spindowns without drama, and is rock solid stable in a server that measures its uptime in months. It boots quickly and doesn't require any adjustments or settings to read everything plugged in to it.

It is designed on pcie 3.0 x1 interface that will provide 8gbps total bandwidth, each sata iii ports will get 6gbps max speed for connected hdds/ssds. It supports port multiplier fis based switching or command-based switching. It is great for someone that has extra drives and want to use up a x4 or a x8 pcie slot. This is a very well made and assembled product, and the kit comes with 4 cables and the mini mounting bracket for those cases.

• Mounted with full height bracket, will works on standard pcs
• Packed with low profile bracket will works slim pcs
• Great for people for whom the native ports just aren't enough