From Hager's premium 'Design 30' range, the VM90810CU offers a number of features which set it apart from other high integrity, duplex boards: Knock outs top bottom and rear, Multiple fixing points, No restrictions under the DIN rail, Cable entries positioned for easy access to devices, Cable entry protectors to prevent damage to cable caused by sharp edges, Terminal bars are top mounted allowing for easy cable dressing , 'Snap-able' bus bar means one less tool and speeds up install. It's a feature rich, attractive looking, high integrity consumer unit at a great price.