Dell, which has been selling PCs directly to consumers, on Friday will begin selling "white boxes" to the reseller market.
The computer, a 510D PC with an Intel Celeron or Pentium 4 processor, not including a monitor, will be priced starting at $499. Dealers can upgrade the PCs and re-brand them.
Dell said the move is an opportunity to expand its business. Sales of unbranded PCs are expected to make up about 1% of the company's overall revenues.
The company will focus on smaller, local dealers.
Research firm IDC said unbranded PCs account for about 30% of the overall PC market.