Enable automated supply of .it domains plus let your clients manage TLDs in your system.
Arsys Registrar Module / Módulo registrador para Arsys
Worldwide ccTlds with one registrar module
This addon automatically parks any domain order (that has no hosting account or the default nameservers) in your cPANEL server!
DomainBox Registrar Module from Stone Hosting
Register new Domain with LiveDNS
Synergy Wholesale domain registrar module
Create your own reseller network between other WHMCS resellers
The Gransy Registrar Module connects WHMCS to your Regtons / Subreg account.
The DOT KE (Kenya ccTLD) Domain Reseller WHMCS Module provides domain registrars and domain resellers with a FREE domain registrar module, that brings about the automation of .KE domains provisioning and management into the WHMCS system.
Resell domain Products from Z.com
Joker.com maintains a registrar module for WHMCS, which offers a great load of features to interface Joker.com seamlessly from within WHMCS.
KBWEBSOL Registrar Module