






🔗 Connect More, Stress Less – The Serial Card That Means Business
The MZHOU PCI-E to 4-port RS232 Serial Port Card is a professional-grade expansion card designed for seamless integration into PCI-E x1 slots. Featuring four 9-pin DB9 serial ports with bidirectional speeds up to 250 Kbps, it supports a wide range of serial devices including POS terminals and industrial control systems. Powered by the ASIX AX99100 controller chip, it ensures stable data transfer and supports hot swapping across multiple operating systems, making it an essential upgrade for modern serial network applications.



| ASIN | B07NSYM2TJ |
| Best Sellers Rank | 100,753 in Computers & Accessories ( See Top 100 in Computers & Accessories ) 341 in Network Cards |
| Brand | MZHOU |
| Brand Name | MZHOU |
| Compatible Devices | Desktop Computer |
| Compatible devices | Desktop Computer |
| Customer Reviews | 4.2 out of 5 stars 353 Reviews |
| Hardware Interface | PCI |
| Hardware interface | PCI |
| Item Weight | 0.12 Kilograms |
| Item weight | 0.12 Kilograms |
| Manufacturer | MZHOU |
| Manufacturer Part Number | Mzhou-k2 |
| Model Number | Mzhou-k2 |
| Number of Items | 1 |
| Number of items | 1 |
| Operating System | Windows, macOS, Linux |
| Style | One size |
| Style Name | One size |
| Unit Count | 1.0 count |
M**S
Works like a charm
Installation was easy and worked fine. Installed a new m.2 drive and all was working fine without any issues.
A**R
Good speeds
Populated with a WD Blue 1Tb NVMe, good speeds, zero issues. Worth getting if you require additional high speed drives.
W**E
very good value and very easy to use and gives me somewhere for my spare drives
MZHOU SINGLE M2 - SINGLE SATA Adapter Card PCIe 4X 3.0 NGFF M.2 PCIE Adapter, Very good value and very easy to use and gives me somewhere for my spare drives came with everything you need in the box but be careful the screw that holds the drive is very poor we used a spare we had but would still give it a 8/10
S**U
Works well for proxmox ve storage
Works well with an m.2 SATA ssd and an m.2 nvme disk installed. All functions work. Does have some random LEDs on the back which is fine since I can't see them but might bother some.
G**E
Very easy to setup & install
Installed nvme then put card in PC and installed windows 10. Very easy to setup & use. Will be buying another to upgrade an older PC to nvme drive
A**H
brilliant
brilliant
L**S
Doesn't work!
This is bizarre device and it doesn't do what it says (Dual M.2 SDD SATA III PCIE M.2 Adapter Card). Or at least it is not very clearly explained what it does. In my case it simply didn't work as expected (connecting 2x NGFF SSDs via PCIE slot - which seems to be only reason this adapter exists). So this is NOT what it looks like - it is not Dual M2 > PCIE X4. It is actually seems to be Single M2 NVME > PCIE X4 + Single M2 SATA NGFF > SATA3... which is just wacky (why would anyone want to do that?!). Point being - you can connect Single M2 NVME to the bottom slow for it to run via PCIE X4, or you can connect Single M2 NGFF SATA to upper slot and then connect separate SATA3 cable to your motherboard and run it as SATA adapter! I guess this explains how this device can run without any controller, because NVME is PCIE compatible and SATA NGFF is SATA compatible, so it basically uses native compatibility and is merely a sophisticated holder + provides power to SATA via PCIE. It isn't even clear if you could use both of them at the same time, or either one at the time In my case I had 2x NGFF SATA drives and didn't spare have NVME at hand, so I could not test if it would recognise NVME, but it certainly does not recognise NGFF SATA. If you look very carefully in grainy images provided then it says M Key for bottom slot which is NVME only and B-M key for upper slot, but description just jumbles everything into one line implying it does both, not either/or! As well it says "SATA IN", where it actually is SATA OUT. It is kind of device for person who does not know whenever they have NVME or SATA NGFF so they can try both... maybe, potentially, one of slots may work!
A**R
Very Easy to fit, Works well.
Very Easy to fit, Works well.
K**9
Attention aux leds pouvant éclairer une ville la nuit :)
> Produit conforme > livraison rapide > produit solide et bien emballé > Leds arrière ULTRA puissantes ^^
A**O
MZHOU Doppia Scheda Adattatore M4 SATA III e M2 a PCIe 3.0 X4 - Ottima!!!
Ottimo prodotto, l'ho installato collegandolo al pci express dei 2 della scheda video che avevo, (uno era libero dato che non uso crossfire o sli o altro) ed ho installato l'hard drive (precedentemente, un samsung da 1 tb nvme pro 980), ti forniscono le vitine per installarlo. Dopo aver piazzato il tutto sulla scheda madre ho collegato anche il cavetto sata (non so a cosa serva ma l'ho collegato, forse alimenta boh?) Poi mi son recato su Gestione Disco e il pc con win 11 ha rilevato subito l'unita ssd nvme, creato e formattato la partizione e tac il disco era pronto per l'utilizzo, ho scaricato infine la suite di Samsung Magician per aggiornare il firmware ecc..... Imballaggio così così per il resto tutto regolare!!! Arrivato nei tempi previsti.
J**9
Cumple su cometido
Desde hace unos años que la tengo y funciona perfecta
O**R
Zuverlässige NVME-Platform bei Platzmangel auf dem MOBO
Die Adapterkarte betreibt bei mir eine NVME-SSD, da auf dem Mainboard nicht mehr genug Platz war. Die Karte ist bei mir schon 2 Jahre im Einsatz und verrichtet zuverlässig ihren Dienst. Einzig der Preis war zum damaligen Zeitpunkt etwas hoch.
E**D
Idéal pour un M.2
J'avais choisi ce modèle grâce à ses 2 ports M.2. mais jje n'avais pas bien lu la fiche descriptive du produit. car il s'agit de 2 ports différents. Effectivement il est possible d'y insérer 2 SSD M.2 pour une utilisation conjointe, mais attention car sur la carte se trouve : - 1 port M.2 M key - 1 port M.2 B key Les possibilité sont donc à étudier, j'avais 2 SSD M key à insérer, mais du coup impossible. Par contre 1 SSD Mkey et 1 SSD B+M fonctionne. Concernant les taux de transfert, rien à dire, je n'ai pas de perte par rapport au port se trouvant sur ma carte mère avec le même disque.
Trustpilot
2 weeks ago
1 month ago