TRENDnet TEW-624UB User Manual page 12

 Network Key: choose the encryption way, either in HEX or ASCII formats,
and enter the password in the blank space.
 Key Length: select 64 or 128 bits as the length of the keys
Key Format: HEX or ASCII
Key Length
Type
64-bit
128-bit
WPA-PSK / WPA2-PSK
If using the WPA-PSK/WPA2-PSK authentication method, please select the
Encryption type for TKIP or AES then enter the Passphrase key. The minimum
length is 8 characters.
WPA EAP-TLS
If using the WPA/WPA2 EAP-TLS authentication method, please select the
Encryption type for TKIP or AES then select the WPA/WPA2 Certificate from drop
down list.
Hex
characters 0-9, A-F, a-f
10 characters
26 characters
7
ASCII
alphanumeric format
5 characters
13 characters