What are the alternatives to the 2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V…?

2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V… competes with other Retro CPUs products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Retro CPUs category for alternatives.

Bridgold

2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V to 5.5V，SOIC-28.

Name: 2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V to 5.5V，SOIC-28.
Brand: Bridgold
SKU: B0GFM3HJBG
Price: 13.99 USD
Availability: InStock

By Mike Perry, Hardware Editor · Verified 2026-09-06

Mike Perry has researched PC hardware since 2014, tracking 80+ GPU generations, 50+ retro handheld platforms, and 30+ vintage PC configurations. He synthesises community benchmarks, manufacturer specs, and public forum data into actionable buying guides. View full credentials →

$13.99

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*Price sourced from Amazon.com. Price and availability subject to change.

Bottom line: The 2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V to 5.5V，SOIC-28. is a niche pick — read recent reviews before buying in the retro cpus category, priced around $13.99. Compare close alternatives before committing.

The MCP23017 consists of multiple 8-bit configuration registers for input, output and polarity selection. The system master can enable the I/Os as either inputs or outputs by writing the I/O configuration bits (IODIRA/B).The data for each input or output is kept in the corresponding input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.Package include:2Pcs *MCP23017

SpecPicks Verdict

SpecPicks scored 2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface… using a rating × review-volume × price-fit model applied to our editorial and benchmark analysis across the retro cpus category. Bridgold's retro cpus lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Mixed or limited buyer feedback at this price point — focus your evaluation on recent reviews that specifically address build quality and long-term reliability, and shortlist one or two close alternatives before deciding.

Common buyer scenarios for retro cpus 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 Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ 16-Bit Remote Bidirectional I/O Port.
✓ Backed by Bridgold's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

16-Bit Remote Bidirectional I/O Port.
High-Speed I2C Interface.
Configurable Interrupt Output Pins.
INTA and INTB Can Be Configured to Operate Independently or Together.
Polarity Inversion Register to Configure the Polarity of the Input Port Data.

Full Specifications

Brand	Bridgold
Package Dimensions	‎4.96 x 2.68 x 0.39 inches

Ready to buy?

2pcs MCP23017 MCP 23017 16 Bit I/O Expander with Serial Interface 1.8V to 5.5V，SOIC-28. is sold on the used and vintage market, where eBay carries the live inventory — Amazon does not stock this part. Prices and condition vary by seller and move in real time, so we link the live listing rather than quote a cached price. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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*Price sourced from Amazon.com. Price and availability subject to change.