The Tiny Dongle That Sparked a Revolution
Cast your mind back to 2009. If you were a small merchant—a food truck owner, an artist at a craft fair, a freelance plumber—taking credit cards was often a clunky, expensive nightmare. Then came Square, co-founded by Jack Dorsey, with a deceptively simple
idea. The company created a tiny, one-inch-square reader that plugged into the audio jack of a smartphone or tablet. Combined with a simple app, it turned any phone into a credit card terminal. For a straightforward 2.75% fee per swipe, anyone could accept plastic. It was revolutionary, democratizing payment processing for millions and becoming the company's signature product. The reader itself was often given away for free, acting as the gateway for merchants to enter Square's world.
The World Started Moving On
For years, the audio-jack reader was perfect. It was universal; nearly every smart device had one. But the tech world doesn't stand still. Two major shifts began to make the original reader's design a liability. First, the payments industry itself changed. In response to fraud, the U.S. began a mandatory shift to more secure EMV chip cards, which required a different kind of "dipping" reader. Simultaneously, contactless payments like Apple Pay and Google Pay gained traction, using NFC (Near Field Communication) technology that let customers simply tap their phone or card to pay. The second blow came from smartphone makers themselves, most notably Apple. In 2016, with the launch of the iPhone 7, Apple removed the headphone jack, a port that had been a universal standard. While adapters were a clumsy workaround, the writing was on the wall: the simple, universal port that made the original Square reader so elegant was becoming an endangered species.
From a Single Product to an Entire Ecosystem
This is where strategy trumps nostalgia. Square realized its future wasn't in selling (or giving away) tiny plastic dongles. The real value was in building a comprehensive financial ecosystem for its merchants. The company, which rebranded as Block Inc. in 2021, didn't just want to process a transaction; it wanted to be the entire back office for a small business. This meant expanding into services like advanced point-of-sale software (Square Register), employee payroll, small business loans (Square Capital), and customer loyalty programs. The original reader was a foot in the door, but it was a low-margin entry point. The new generation of hardware—like the Bluetooth-connected Square Reader for Contactless and Chip—did more than just accept modern payments. It pulled merchants deeper into this sticky, high-value suite of software and financial services.
A Calculated Sacrifice for a Bigger Prize
Killing the iconic magstripe reader wasn't about failure; it was a deliberate sacrifice. The company understood that clinging to a single, successful product could ultimately limit its growth. The hardware was never the main point; it was bait. The real business model is built on the software and banking services that the hardware enables. By moving customers to the more advanced Bluetooth readers, Square ensured they were equipped for modern payments while also tightening their integration into the company's ecosystem. This strategy connects the two major sides of Block's business: the Square ecosystem for sellers and the Cash App ecosystem for consumers. The goal is to create a closed-loop network where sellers use Square's tools to run their business and individuals use Cash App to manage their money, with Block facilitating the interactions between them. Phasing out the legacy reader was a necessary step in pushing everyone toward that more integrated, more profitable future.
