Emmc storage upgrade, replace emmc with microsd, Emmc hard drive

 4 GB 11.5 x 13 x 1.0 Surface Mount v5.1 e•MMC Flash Memory - BGA-153

https://www.futureelectronics.com/p/semiconductors--memory--storage--embedded-storage/emmc04g-m627-x03u-kingston-3106130