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We present a new infinite family of Type IIB supergravity solutionspreserving eight supercharges. The structure of the space is$\text{AdS}_2\times\text{S}^2\times \text{CY}_2\times \text{S}^1$ fibered overan interval. These solutions can be related through double analyticalcontinuations with those recently constructed in \cite{Lozano:2020txg}. Bothtypes of solutions are however dual to very different superconformal quantummechanics. We show that our solutions fit locally in the class of$\text{AdS}_2\times \text{S}^2\times \text{CY}_2$ solutions fibered over a 2dRiemann surface $\Sigma$ constructed by Chiodaroli, Gutperle and Krym, in theabsence of D3 and D7 brane sources. We compare our solutions to the globalsolutions constructed by Chiodaroli, D'Hoker and Gutperle for $\Sigma$ anannulus. We also construct a cohomogeneity-two family of solutions usingnon-Abelian T-duality. Finally, we relate the holographic central charge of ourone dimensional system to a combination of electric and magnetic fluxes. Wepropose an extremisation principle for the central charge from a functionalconstructed out of the RR fluxes.

$\text{AdS}_2\times \text{S}^2\times \text{CY}_2$ solutions in Type IIB with 8 supersymmetries