Will this allow me to use the com port on the ASUS Sabertooth 990 FX motherboard? I am aware that only one DB9 can be used but I need the full sized slot cover. There is a single port available but it is a low profile slot cover but I need the full sized cover.

There are 2 different standards for serial ports. Each on has a different pin out. This one is the Intel standard. You need to look at the motherboard specifications to determine if it is compatible. The single port cable are common and available in both pin outs. 2 port cables are rare and I was only able to find it with the Intel standard so I am rewiring them.

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StarTech.com Model PLATE9M2P16 16" 2 Port DB9 Serial Port Bracket to 10 Pin Header

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4 Connector Number
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Add two extra serial ports to the back of your PC, from your motherboard - db9 b

Best Seller Ranking	#21 in Serial Cables

Model
Brand	StarTech.com
Model	PLATE9M2P16
Type	Adapter
Type	Serial/IDC
Color	Gray

Details
Length	16"
Connector Number	4
Connector Detail	Connector A: 2 - IDC (10 pin; Motherboard Header) Female Connector B: 2 - DB-9 (9 pin; D-Sub) Male
Specifications	Wire Gauge: 28 AWG Product Weight: 1.6 oz

Features
Features	2x DB9 (Male) Serial Ports 2x IDC10 (Female) motherboard connectors Adding DB9 serial connectivity to a PC, for POS applications

Additional Information
First Listed on Newegg	January 12, 2026

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StarTech.com Model PLATE9M2P16 16" 2 Port DB9 Serial Port Bracket to 10 Pin Header

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Item#: 9SIBSWCKRR2895

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StarTech.com Model PLATE9M2P16 16" 2 Port DB9 Serial Port Bracket to 10 Pin Header

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