StarTech.com 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
Product Technical Specification
| Ports & interfaces | |
| Host interface | PCIe |
| Output interface | Serial |
| Serial ports quantity | 4 |
| Serial interface type | RS-232 |
| Design | |
| Internal | Yes |
| Mean time between failures (MTBF) | 26280 |
| Certification | CE, FCC, REACH |
| Features | |
| Chipset | ASIX - MCS9904CV-AA |
| Baud rate | 128 |
| FIFO (First In, First Out) | 256 |
| Data bits | 5,6,7,8 |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 50 |
| Storage temperature (T-T) | -20 - 60 |
| Operating relative humidity (H-H) | 5 - 85 |
| System requirements | |
| Windows operating systems supported | Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 Pro,Windows 10 Pro x64,Windows 2000,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64,Windows 95,Windows 98SE,Windows Vista Business,Windows Vista Business x64,Windows Vista Enterprise,Windows Vista Enterprise x64,Windows Vista Home Basic,Windows Vista Home Basic x64,Windows Vista Home Premium,Windows Vista Home Premium x64,Windows Vista Ultimate,Windows Vista Ultimate x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64 |
| Mac operating systems supported | Mac OS X 10.10 Yosemite,Mac OS X 10.4 Tiger,Mac OS X 10.5 Leopard,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks |
| Linux operating systems supported | Yes |
| Server operating systems supported | Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019 |
| Other operating systems supported | Windows Embedded POSReady 2009,Windows Embedded Standard 2009,Windows XP Embedded |
| Technical details | |
| Sustainability certificates | RoHS |
| Weight & dimensions | |
| Width | 130 |
| Depth | 120 |
| Height | 19 |
| Weight | 74 |
| Packaging data | |
| Quantity | 1 |
| Mounting brackets included | Yes |
| Drivers included | Yes |
| Manual | Yes |
| Package width | 141 |
| Package depth | 170 |
| Package height | 30 |
| Package weight | 230 |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
Delivery Options
Economy Delivery (UK)
Fast & Tracked by Courier (UK)
The PEX4S553 4-Port Native PCI Express RS232 Serial Adapter Card with 16550 UART lets you add 4 RS232 (DB9) serial ports, using a single PCI Express expansion slot.
Based on a native single-chip design, this 4-port serial adapter card allows you to 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.
The RS232 Serial Adapter Card includes 4 half-height/low-profile brackets, allowing the card to be installed into almost any PC case, regardless of form factor.
Backed by a StarTech.com Lifetime warranty and free lifetime technical support.
The StarTech.com Advantage
- Native single-chip, single lane PCI Express chipset delivers true PCIe performance, up to 48% more efficient than bridge chip designs
- Standard and low profile/half-height brackets included to ensure fitment in any system
| Ports & interfaces | |
| Host interface | PCIe |
| Output interface | Serial |
| Serial ports quantity | 4 |
| Serial interface type | RS-232 |
| Design | |
| Internal | Yes |
| Mean time between failures (MTBF) | 26280 |
| Certification | CE, FCC, REACH |
| Features | |
| Chipset | ASIX - MCS9904CV-AA |
| Baud rate | 128 |
| FIFO (First In, First Out) | 256 |
| Data bits | 5,6,7,8 |
| Operational conditions | |
| Operating temperature (T-T) | 0 - 50 |
| Storage temperature (T-T) | -20 - 60 |
| Operating relative humidity (H-H) | 5 - 85 |
| System requirements | |
| Windows operating systems supported | Windows 10,Windows 10 Education,Windows 10 Education x64,Windows 10 Enterprise,Windows 10 Enterprise x64,Windows 10 Home,Windows 10 Home x64,Windows 10 Pro,Windows 10 Pro x64,Windows 2000,Windows 7,Windows 7 Enterprise,Windows 7 Enterprise x64,Windows 7 Home Basic,Windows 7 Home Basic x64,Windows 7 Home Premium,Windows 7 Home Premium x64,Windows 7 Professional,Windows 7 Professional x64,Windows 7 Starter,Windows 7 Starter x64,Windows 7 Ultimate,Windows 7 Ultimate x64,Windows 7 x64,Windows 8,Windows 8 Enterprise,Windows 8 Enterprise x64,Windows 8 Pro,Windows 8 Pro x64,Windows 8 x64,Windows 8.1,Windows 8.1 Enterprise,Windows 8.1 Enterprise x64,Windows 8.1 Pro,Windows 8.1 Pro x64,Windows 8.1 x64,Windows 95,Windows 98SE,Windows Vista Business,Windows Vista Business x64,Windows Vista Enterprise,Windows Vista Enterprise x64,Windows Vista Home Basic,Windows Vista Home Basic x64,Windows Vista Home Premium,Windows Vista Home Premium x64,Windows Vista Ultimate,Windows Vista Ultimate x64,Windows XP Home,Windows XP Home x64,Windows XP Professional,Windows XP Professional x64 |
| Mac operating systems supported | Mac OS X 10.10 Yosemite,Mac OS X 10.4 Tiger,Mac OS X 10.5 Leopard,Mac OS X 10.6 Snow Leopard,Mac OS X 10.7 Lion,Mac OS X 10.8 Mountain Lion,Mac OS X 10.9 Mavericks |
| Linux operating systems supported | Yes |
| Server operating systems supported | Windows Server 2003,Windows Server 2008 R2,Windows Server 2012,Windows Server 2012 R2,Windows Server 2016,Windows Server 2019 |
| Other operating systems supported | Windows Embedded POSReady 2009,Windows Embedded Standard 2009,Windows XP Embedded |
| Technical details | |
| Sustainability certificates | RoHS |
| Weight & dimensions | |
| Width | 130 |
| Depth | 120 |
| Height | 19 |
| Weight | 74 |
| Packaging data | |
| Quantity | 1 |
| Mounting brackets included | Yes |
| Drivers included | Yes |
| Manual | Yes |
| Package width | 141 |
| Package depth | 170 |
| Package height | 30 |
| Package weight | 230 |
| Logistics data | |
| Harmonized System (HS) code | 84733020 |
Buykingston order despatch times:
We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.
These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).
We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.
Estimated delivery times are provided to us by the respective delivery companies. We pass this information onto you, the customer.
Despatch times do not apply to UK public holidays.
Estimated delivery times are taken from the next available working day available for delivery. For example if an order was despatched on a working Wednesday by 3pm, the first available working day for delivery would be Thursday provided you placed your order by 3pm on the Wednesday. If the next available weekday is a UK bank holiday/public holiday then your order will be despatched on the next available working day.
Our warehouse reserves the right to upgrade the delivery method you select on your order.
Our available delivery options*
Contact us for a shipping quote.
*All delivery times are estimated unless stated.
Product Returns Note
Buykingston offers a simple, hassle-free returns policy. If for whatever
reason you are not happy with the item purchased, you can return it to us
within 14 days of receipt for a refund. This applies to items purchased
direct through Buykingston only.
Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If
an item has been opened for inspection but shows signs of use beyond that, a
deduction may apply to reflect the reduced value — see our full
Terms & Conditions
(Section 12) for details.
Some items are excluded from our money-back guarantee unless they have developed a fault. These include:
- Headphones
- Earphones
- Custom made and designed products, such as flash memory products with
custom logos on them, e.g. USB flash drives and memory cards with your own
logo
Returns FAQs
What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked
items.
How do I go about returning my order?
Please contact us
via our contact page with your order number. We will provide you with an RMA
number and return instructions, including your return deadline and whether a
freepost label applies to your order.
Do I need to contact you before returning my order?
Yes, to obtain an RMA number before sending anything back.
Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we
understand you may no longer have the original packaging.
Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable
return postage, or provide a freepost label where available. If you are
returning an item for another reason (including simply changing your mind),
you are responsible for return postage unless we have expressly confirmed a
freepost label in your RMA email — we recommend using a tracked and
insured service for items of significant value.
Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer
directly for assistance.
Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.