A server blade of an electronic rack, the server blade comprising: a server tray to contain an information technology component representing a server therein; and a self-fitting coupling assembly having a first liquid intake connector and a first liquid outlet connector, wherein the first liquid intake connector is to receive heat removal liquid from a heat removal liquid manifold assembly of a back panel disposed on a backend of the electronic rack to remove heat from the IT component, wherein the first liquid outlet connector is to emit warmer liquid carrying heat exchanged from the IT component to the heat removal liquid manifold assembly, wherein the first liquid intake connector and the first liquid outlet connector are capable of moving around within a predetermined tolerance space relative to the server tray to self-align with a second liquid intake connector and a second liquid outlet connector fixedly disposed on the heat removal liquid manifold assembly of the back panel respectively, and wherein the heat removal liquid manifold assembly is to receive the heat removal liquid received from an external heat removal system, wherein the self-fitting coupling assembly comprises: a floating alignment plate having the first liquid intake connector and the first liquid outlet connector mounted thereon, wherein the floating alignment plate includes a stopper (411A or 411B) extended outwardly towards the back panel; and an alignment bracket (421A or 421B) fixedly mounted on an backend of the server tray, wherein the alignment bracket (421A or 421B) includes an alignment guide (412A or 412B) to expose the stopper (411A or 411B) of the floating alignment plate through the alignment guide (412A or 412B), which guides the floating alignment plate to move within the predetermined tolerance space while the alignment bracket (421A or 421B) remains steady. a server tray to contain an information technology component representing a server therein; and a self-fitting coupling assembly having a first liquid intake connector and a first liquid outlet connector, wherein the first liquid intake connector is to receive heat removal liquid from a heat removal liquid manifold assembly of a back panel disposed on a backend of the electronic rack to remove heat from the IT component, wherein the first liquid outlet connector is to emit warmer liquid carrying heat exchanged from the IT component to the heat removal liquid manifold assembly, wherein the first liquid intake connector and the first liquid outlet connector are capable of moving around within a predetermined tolerance space relative to the server tray to self-align with a second liquid intake connector and a second liquid outlet connector fixedly disposed on the heat removal liquid manifold assembly of the back panel respectively, and wherein the heat removal liquid manifold assembly is to receive the heat removal liquid received from an external heat removal system, wherein the self-fitting coupling assembly comprises: a floating alignment plate having the first liquid intake connector and the first liquid outlet connector mounted thereon, wherein the floating alignment plate includes a stopper (411A or 411B) extended outwardly towards the back panel; and an alignment bracket (421A or 421B) fixedly mounted on an backend of the server tray, wherein the alignment bracket (421A or 421B) includes an alignment guide (412A or 412B) to expose the stopper (411A or 411B) of the floating alignment plate through the alignment guide (412A or 412B), which guides the floating alignment plate to move within the predetermined tolerance space while the alignment bracket (421A or 421B) remains steady. a floating alignment plate having the first liquid intake connector and the first liquid outlet connector mounted thereon, wherein the floating alignment plate includes a stopper (411A or 411B) extended outwardly towards the back panel; and an alignment bracket (421A or 421B) fixedly mounted on an backend of the server tray, wherein the alignment bracket (421A or 421B) includes an alignment guide (412A or 412B) to expose the stopper (411A or 411B) of the floating alignment plate through the alignment guide (412A or 412B), which guides the floating alignment plate to move within the predetermined tolerance space while the alignment bracket (421A or 421B) remains steady.