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Low-profile bracket with DB9 male and IDC10 connectors on a 229mm cable

STARTECH

STARTECH PLATE9MLP 9-pin Serial to 10-pin Header Slot Plate expansion card

SKU CH-YDRS-DE03H MPN PLATE9MLP

Adds a DB9 serial port to low-profile systems via a 10-pin motherboard header and 229 mm cable

  • Product typeSerial Header Adapter
  • DetailsConnectors DB9 Male, IDC 10 Cable Length 9 in (229 mm)
  • Key featuresThis 9-pin Serial to 10-pin Header Slot Plate features DB9,
  • Product weight0.05
  • Adds a DB9 serial port to low-profile PCs
  • Connects to motherboard via 10-pin IDC header
  • 229 mm cable reaches rear panel easily
  • Low-profile bracket fits small form-factor cases
  • Weighs only .05 kg for minimal load

9-pin Serial Header Adapter for Low Profile PCs

This slot plate adds a DB9 serial port to the rear panel of a small form factor or low profile computer. It connects to the motherboard using an IDC10 header. The adapter is designed for systems that require a legacy serial connection but lack an integrated port. Builders needing USB or other modern interfaces will not find them here.

IDC10 Header Limits Cable Reach

The included cable measures 9 inches (229mm), which restricts placement to headers near the rear expansion slot. Motherboards without a matching 10-pin IDC serial header cannot use this adapter. The low profile bracket fits only compatible low profile chassis slots. Systems requiring internal device connections instead of a rear port are not supported.

DB9 Male and IDC10 Female Connector Pair Defines Fit

The product provides a 9-pin DB9 male connector on the bracket and a 10-pin IDC female connector for the motherboard header. This specific connector pairing determines whether the adapter matches the target system. Verifying the motherboard header pinout against this pair is the single step that confirms compatibility.

How it compares

Measured against everything we stock in PCIe Expansion Cards, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 92% of the 891 comparable items (median $30.99).

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Specifications

Product
Brand nameStarTech.com
Model namePLATE9MLP
Product typeSerial Header Adapter
Size & build
Shipping weight0.02 kg
Package size124 × 84 × 33 mm

Questions about this item

Should I pick the low-profile bracket version or a full-height bracket for my case?

This model ships with a low-profile bracket designed for small-form-factor chassis; no full-height bracket is included.

What does the 9-inch cable length mean when the plate is installed?

The 229 mm ribbon gives enough slack to route from a motherboard IDC10 header to the rear expansion slot without tension.

Which motherboard header does the IDC10 connector plug into?

It connects to a standard 10-pin serial header on the motherboard, adding a DB9 male port to the back panel.

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