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30cm DB9 Y Splitter Cable DB9 9 Pin 1 Female ale to 2 Male Rs232 Serial Splitter Adapter Straight-Through Cable YOUCHENG for Connect Various Serial Interface Devices
PNGKNYOCN

30cm DB9 Y Splitter Cable DB9 9 Pin 1 Female ale to 2 Male Rs232 Serial Splitter Adapter Straight-Through Cable YOUCHENG for Connect Various Serial Interface Devices

Bottom line: The 30cm DB9 Y Splitter Cable DB9 9 Pin 1 Female ale to 2 Male Rs232 ($7.19 on Amazon as of 2026-10-06): Splits one DB9 female port into two DB9 male RS-232 connections; main trade-off: 30cm length is too short to reach distant peripherals.

$7.19

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Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

Pros & Cons

Pros

  • ✓ Splits one DB9 female port into two DB9 male RS-232 connections
  • ✓ Fully shielded cable with nickel-plated connectors
  • ✓ Thumbscrews on each connector for quick, secure swaps
  • ✓ Compact 30cm length keeps desk and rack clutter down
  • ✓ Plug and play with no driver install required

Cons

  • ✗ 30cm length is too short to reach distant peripherals
  • ✗ Straight-through wiring means both devices share the same signal lines
  • ✗ Brand listed as PNGKNYOCN while the title reads YOUCHENG
  • ✗ Listing describes the pinout inconsistently as female-to-male and male-to-female

Manufacturer description

1.① Pin (DCD) data carrier detection, ② pin (RXD) receive data, ③ pin (TXD) transmit data, ④ pin (DTR) data terminal preparation, ⑤ pin (SG) signal ground, ⑥ pin (DSR) data device preparation OK, ⑦ pin (RaS) request to send, ⑧ pin (CTS) clear to send, ⑨ pin (RI) ringing indication.2.The DB9 splitter cable can help you split a DB9 9-pin male connector into two DB9 9-pin female connectors.3.uses high-quality nickel-plated connectors and plugs and a high-quality PVC injection housing,With wear-resistant, durable, smooth transmission and other functions.4.This cable's fully molded connector with…

SpecPicks Verdict

SpecPicks scored 30cm DB9 Y Splitter Cable DB9 9 Pin 1 Female ale to 2 Male Rs232… using a rating × review-volume × price-fit model applied to published specs and reviews across the retro graphics & video category. PNGKNYOCN's retro graphics & video lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for retro graphics & video of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • Split a DB9 9-pin female connector into two DB9 9-pin male connectors. This is an ideal and cost-effective way to connect two DB9 RS-232 serial peripherals to a PC source.
  • The DB9 serial splitter cable allows you to flexibly expand computer peripherals where you need it. Each cable is completely shielded, and the connector thumbscrew can provide quick-change connections.
  • Uses high-quality nickel-plated connectors and plugs and a high-quality PVC injection housing,With wear-resistant, durable, smooth transmission and other functions
  • The cable length is 30cm, the compact and simple design is easy to carry and place, easy to use, plug and play, no driver installation
  • With high compatibility, it can meet the needs of notebooks and desktops to connect to serial computers, digital machine tools, set-top boxes, industrial instruments, etc.

Full Specifications

BrandPNGKNYOCN
ColorBlack
ModelPNGKNYOCN
Cable TypeSerial
Item ShapeRound
Unit Count1.0 Count
CompatibilityPC
Connector TypeDB9
Number of Pins9
Number of Items2
Special FeatureCompact
Connector GenderMale-to-Female
Compatible DevicesPC
Indoor Outdoor UsageIndoor, Outdoor
Compatible Phone ModelsNo Compatible Phone Models
Recommended Uses For Productconnecting serial interface devices, digital machine tools, industrial instruments, and set-top boxes to a PC source
Other Special Features of the ProductCompact

Ready to buy?

30cm DB9 Y Splitter Cable DB9 9 Pin 1 Female ale to 2 Male Rs232 Serial Splitter Adapter Straight-Through Cable YOUCHENG for Connect Various Serial Interface Devices is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Buy on Amazon — $7.19

*Price sourced from Amazon.com. Last updated 2026-10-06. Price and availability subject to change.

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