The Cisco 10000 Carrier for Half-Height line cards holds up to two Cisco 10000 half-height line cards. Each carrier utilizes a single slot on a Cisco 10005 or Cisco 10008. The carrier enables the Cisco 10000 to use half-height line cards and provide maximum modularity for flexible deployment options. It also enables half-height line card online insertion and removal (OIR).Cisco offers this full-length base carrier for half-slot line card.