This standard is fully compatible with the older 802.11b hardware, but because of this legacy support, the throughput is reduced by about 20 percent when compared to 802.11a.
Ụkpụrụ a jikọtara nke ọma na ngwanrọ 802.11b okenye, ma n'ihi nkwado nkwado a, a na-ebelata mmepụta ihe dịka pasent 20 mgbe e jiri ya tụnyere 802.11a .