should be in the range of $40 to $80. If you're in Harare, one place to check for laptop accessories is EdgeLink. their address is
40 Samora Machel Avenue
St Andrews House, Second Floor
Suite 9-12
Harare
Telephone: (04) 795183 | 700913
Mobile: 0772906771 | 0773799128 | 0779151837