A chargeback is a card payment unwound after the fact: the cardholder disputes, the network claws the money back from the merchant, and the merchant proves the sale was real or eats it. The window runs months; the burden sits with the seller; friendly fraud is a cost of doing business.
Crypto payments invert the default: settlement is final, and reversal requires the recipient to send it back. The merchant's exposure collapses from a months-long dispute window to the wait for confirmations. The buyer loses a protection, which is why good checkouts offer both rails and let the two audiences sort themselves.
A chargeback is the card system's reversal mechanism: a cardholder disputes a charge, the network pulls the funds back provisionally, and the merchant answers with evidence in a process whose incentives are structured around the cardholder's confidence to spend. The merchant pays fees for the privilege, and enough disputes can cost the account itself.
The mechanism exists because card settlement is credit run at distance: the network pays merchants before collecting, and reversible payments are what make consumers willing to type card numbers into strangers' websites. The cost of that willingness is distributed to merchants through interchange, dispute fees, and the fraud losses the system prices in.
On-chain settlement has no chargebacks, structurally. A confirmed transfer is history; there is no network above the chain to receive a dispute. The merchant's refund becomes a deliberate act rather than an adjudicated reversal, and the fraud that chargebacks police, mostly remote card-not-present patterns, largely does not apply to wallet-signed payments where possession of keys is the authenticity proof.
A digital-goods seller sees a card dispute arrive six weeks after a sale, funds pulled back plus a fee, and evidence due on deadline. The same sale settled in crypto simply ended at confirmation: no window, no dispute, no case.
U.CASH checkouts offer cards (with their familiar protections, through the merchant's own processor) beside crypto and bank rails (with their finality): the buyer picks the trade-offs, the merchant sees which rail paid every order.
Merchants composing rails price this difference: crypto legs carry no dispute window, which suits digital goods, invoices, and in-person trade; card legs keep their dispute machinery and their reach. Offering both lets each sale settle on the rail whose risk profile fits it.
Every term behind the rails, the assets, and the settlement.