Spinner Robin Peterson took five wickets to lead South Africa to a crushing victory by an innings and 205 runs in the second Test against Bangladesh on Monday.
The touring side bowled out their hosts for 119 on the fourth day to complete a 2-0 series win.
South Africa captain Graeme Smith and fast bowler Dale Steyn were named man of the match and man of the series respectively.
Bangladesh, replying to South Africa's massive score of 583 for seven declared, were dismissed for 259 and were reeling at 54 for five after being asked to follow on just after tea on Sunday.
On resumption, the hosts lost their remaining wickets adding just 65 runs in 14.2 overs, with Peterson adding three more scalps and Morne Morkel claiming the other wicket.
Left-arm spinner Peterson claimed 5-33.
Bangladesh batsman Aftab Ahmed, who retired hurt on 21 after being hit on the cheek by a delivery from Jacques Kallis on Sunday, did not bat and was adjudged out.
Tail-ender Abdur Razzak, who made 33 as nightwatchman in the first innings, was the top-scorer and remained 33 not out.
South Africa took a firm grip from the start after Smith (232) and Neil McKenzie (226) shared a world record Test opening stand of 415 in their innings.
South African fast bowler Makhaya Ntini then took four first innings wickets to become his country's second highest Test wicket-taker, tallying 334 victims after moving past former paceman Allan Donald's haul of 330.
Only Shahriar Nafees, who top-scored with 69 in the first innings, crossed fifty for Bangladesh as the lowest ranked Test team failed to provide any resistance against their formidable rivals.
Left-arm spinner Mohammad Rafique, the home team's most successful bowler, provided some consolation by completing 100 Test wickets in his final Test.
