South Africa thrashed Bangladesh by 332 runs in the second Test in Gqeberha on Monday to complete a two-match series sweep.
Keshav Maharaj took seven for 40 as Bangladesh, set a target of 413, were bowled out for just 80.
For the second time in as many Tests, South Africa spinners Maharaj and Simon Harmer shared all 10 second-innings wickets.
South Africa v Bangladesh 2nd Test scoreboard
Final scores on the fourth day of the second Test between South Africa and Bangladesh at St George's Park on Monday:
South Africa, first innings, 453
Bangladesh, first innings, 217
South Africa, second innings, 176-6 dec
Bangladesh, second innings
(overnight 27-3)
Tamim Iqbal c Mulder b Harmer 13
Mahmudul Hasan c Mulder b Maharaj 0
Najmul Hossain lbw b Maharaj 7
Mominul Haque c Rickelton b Maharaj 5
Mushfiqur Rahim c Elgar b Maharaj 1
Liton Das st Verreynne b Maharaj 27
Yasir Ali c Williams b Harmer 0
Mehidy Hasan c Verreynne b Maharaj 20
Taijul Islam lbw b Harmer 0
Khaled Ahmed lbw b Maharaj 0
Ebadot Hossain not out 0
Extras (b6, nb1) 7
Total (23.3 overs) 80
Fall of wickets: 1-1 (Mahmudul), 2-11 (Najmul), 3-27 (Tamim), 4-33 (Mushfiqur), 5-36 (Mominul), 6-44 (Yasir), 7-69 (Liton), 8-80 (Mehidy), 9-80 (Khaled)
Bowling: Maharaj 12-3-40-7 (1nb), Harmer 11.3-3-34-3