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Reference: ST3450857SS
Brand: Seagate
ST3450857SS _ RFB
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PEX1S553LP
StarTech.com PEX1S553LP, PCIe, Serial, PCI 1.1, RS-232, Green, ASIX - MCS9922CV-AA
Description
Add a RS-232 serial port to your standard or small form factor computer through a PCI Express expansion slot
The PEX1S553LP PCI Express Serial Card turns a PCI Express slot into an RS232 (DB9) serial connection.
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.
The PCI Express RS232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows® and Linux Kernel 2.6.11 to 4.11.x, and ships with a low profile/half-height bracket installed, but includes an optional full profile bracket that lets you add a serial port to virtually any computer (regardless of the case form factor).
This product is a replacement for our PEX1S552LP card.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
StarTech.com PEX1S553LP. Host interface: PCIe, Output interface: Serial, Expansion card standard: PCI 1.1. Product color: Green. Chipset: ASIX - MCS9922CV-AA, Baud rate: 460.8 Kbit/s, FIFO (First In, First Out): 128 B. Windows operating systems supported: Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise 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,..., Server operating systems supported: Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows.... Width: 3.15" (80 mm), Depth: 4.13" (105 mm), Height: 0.787" (20 mm)
The PEX1S553LP PCI Express Serial Card turns a PCI Express slot into an RS232 (DB9) serial connection.
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.
The PCI Express RS232 Serial Adapter Card is compatible with a broad range of operating systems, including Windows® and Linux Kernel 2.6.11 to 4.11.x, and ships with a low profile/half-height bracket installed, but includes an optional full profile bracket that lets you add a serial port to virtually any computer (regardless of the case form factor).
This product is a replacement for our PEX1S552LP card.
Backed by a StarTech.com 2-year warranty and free lifetime technical support.
The StarTech.com Advantage
StarTech.com PEX1S553LP. Host interface: PCIe, Output interface: Serial, Expansion card standard: PCI 1.1. Product color: Green. Chipset: ASIX - MCS9922CV-AA, Baud rate: 460.8 Kbit/s, FIFO (First In, First Out): 128 B. Windows operating systems supported: Windows 10 Education, Windows 10 Education x64, Windows 10 Enterprise, Windows 10 Enterprise 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,..., Server operating systems supported: Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows.... Width: 3.15" (80 mm), Depth: 4.13" (105 mm), Height: 0.787" (20 mm)
| Host interface | PCIe |
| Output interface | Serial |
| Expansion card standard | PCI 1.1 |
| Serial ports quantity | 1 |
| Serial interface type | RS-232 |
| Peripheral (Molex) power connectors (4-pin) | 1 |
| Internal | Yes |
| Product color | Green |
| Chipset | ASIX - MCS9922CV-AA |
| Baud rate | 460.8 Kbit/s |
| FIFO (First In, First Out) | 128 B |
| Operating temperature (T-T) | -10 - 80 °C |
| Storage temperature (T-T) | -20 - 100 °C |
| Operating relative humidity (H-H) | 5 - 85% |
| Windows operating systems supported | 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 11, Windows 11 x64, Windows 2000, Windows 2000 Professional, 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 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 ME, 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 | DOS, Windows XP Embedded |
| Compliance certificates | CE, RoHS |
| Width | 3.15" (80 mm) |
| Depth | 4.13" (105 mm) |
| Height | 0.787" (20 mm) |
| Weight | 1.55 oz (44 g) |
| Drivers included | Yes |
| Manual | Yes |
| Package width | 5.63" (143 mm) |
| Package depth | 6.85" (174 mm) |
| Package height | 1.26" (32 mm) |
| Package weight | 4.59 oz (130 g) |
| Harmonized System (HS) code | 84733020 |
| Quantity per master (outer) case | 75 pc(s) |
| Master (outer) case width | 14.4" (365 mm) |
| Master (outer) case length | 27.2" (692 mm) |
| Master (outer) case height | 12.4" (315 mm) |
| Compatible operating systems | Linux, Mac OS 10.4.x |
Product Details
2026-06-24
New
Data sheet
- Product color
- Green
- Host interface
- PCIe
- Weight
- 1.55 oz (44 g)
- Harmonized System (HS) code
- 84733020
- Internal
- Yes
- Serial ports quantity
- 1
- Width
- 3.15" (80 mm)
- Height
- 0.787" (20 mm)
- Depth
- 4.13" (105 mm)
- Package weight
- 4.59 oz (130 g)
- Compatible operating systems
- Linux,
Mac OS 10.4.x - Master (outer) case width
- 14.4" (365 mm)
- Master (outer) case length
- 27.2" (692 mm)
- Master (outer) case height
- 12.4" (315 mm)
- Quantity per master (outer) case
- 75 pc(s)
- Package width
- 5.63" (143 mm)
- Package depth
- 6.85" (174 mm)
- Package height
- 1.26" (32 mm)
- 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
- Operating temperature (T-T)
- -10 - 80 °C
- Storage temperature (T-T)
- -20 - 100 °C
- Operating relative humidity (H-H)
- 5 - 85%
- Peripheral (Molex) power connectors (4-pin)
- 1
- Output interface
- Serial
- Other operating systems supported
- DOS, Windows XP Embedded
- Manual
- Yes
- Compliance certificates
- CE, RoHS
- Drivers included
- Yes
- Expansion card standard
- PCI 1.1
- Chipset
- ASIX - MCS9922CV-AA
- Serial interface type
- RS-232
- Server operating systems supported
- Windows Server 2003, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2, Windows Server 2016, Windows Server 2019
- Baud rate
- 460.8 Kbit/s
- FIFO (First In, First Out)
- 128 B
Specific References
- UPC
- 065030841733
- EAN13
- 0065030841733
- MPN
- PEX1S553LP
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StarTech.com PEX1S553LP, PCIe, Serial, PCI 1.1, RS-232, Green, ASIX - MCS9922CV-AA