STARTECH.COM PEX4S553
Serial Adapter - Dual-profile Plug-in Card - 1 Pack - PCI Express x1 - PC - 4 x
Key facts
- Part number
- PEX4S553
- Brand
- STARTECH.COM
- Category
- Adapters
- Price
- AUD 229.89≈ USD 160 RRP
- Availability
- On request — ask for a quote
The STARTECH.COM PEX4S553 is an adapter listed in the Prology Parts Index. RRP AUD 229.89≈ USD 160 (Oct 2026). Request a quote for volume pricing, or sell us your used adapters.
Overview
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.
Specifications
General
- Number of Serial Ports (External)
- 4
- Host Interface
- PCI Express x1
- Data Transfer Rate
- 128kB/s
- Platform Supported
- PC
- UART Type
- 16C450
16550
- Weight (Approximate)
- 79.4 g
- Form Factor
- Plug-in Card
- Length
- 119.4 mm
- Height
- 17.8 mm
- Width
- 129.5 mm
- Card Height
- Dual-profile
- Product Type
- Serial Adapter
Manufacturer Website Address
- Product Name
- 4 Port Native PCI Express RS232 Serial Adapter Card with 16550 UART
Price history
- Latest
- AUD 229.89≈ USD 160
- Oct 2026
- Lowest recorded
- AUD 229.89≈ USD 160
- Highest recorded
- AUD 229.89≈ USD 160
- Recorded
- 2026
- 1 price point
AUD 229.89 rrp, recorded
Why buy from Prology
- Tested before dispatchEvery item is checked by our technicians before it ships.
- Warranty includedParts are covered by a Prology warranty – ask us for the terms.
- Fast shippingDispatched from our Australian and US locations.
- Real people, quick repliesQuotes and answers within 1 business day.
Request a quote for PEX4S553
Tell us the quantity and condition you need. Prology replies with a firm price and lead time within 1 business day.