Result: EliteBook 2540p (1.8" Hard Drive)

Specifications

Processor : Intel Core i7 (640LM)
Memory Installed : 4GB (1 x 2 GB)
Max. Memory : 8GB
Expansion : 2 Sockets
Type : Notebook PC
Configuration Notes : SSD Compatibility - 2540p shipped with standard voltage Core i5 (520M, 540M) and Core i7 (620M) CPU takes 2.5-inch HDD or SSD in the only 2.5-inch drive bay. 2540p shipped with low voltage Core i7 (640LM) takes 1.8-inch HDD or SSD in the only 1.8-inch drive bay.

If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.

Systems based on Intel GL40 chipset supports up to 4GB maximum.

Per HP documentation, system supports DDR3-1333 (PC3-10600) and 1066 (PC3-8500) modules but memory Bus may run at 1066MHz (PC3-8500 MB/sec) depending on processor.
Description Comparable OEM Part # Axiom Part Number
Mini USB-C 3.1 Gen2 External Portable SSD
250GB USB-C 3.1 External Portable SSD N/A USBC31M2250-AX
2.5" USB-C 3.1 Gen2 External Portable SSD
250GB USB-C 3.1 External Portable SSD N/A USBC31SSD6E250-AX
500GB USB-C 3.1 External Portable SSD N/A USBC31SSD6E500-AX
1TB USB-C 3.1 External Portable SSD N/A USBC31SSD6E1TB-AX
2TB USB-C 3.1 External Portable SSD N/A USBC31SSD6E2TB-AX
2.5" USB-C 3.1 External Portable SATA 7.2K
1TB USB-C 3.1 External Portable Hard Drive N/A USBC31HD2571TB-AX
2.5" USB-C 3.1 External Portable SATA 5.4K
2TB USB-C 3.1 External Portable Hard Drive N/A USBC31HD2552TB-AX
Description Comparable OEM Part # Axiom Part Number
Batteries
LI-ION 6-Cell Battery EH767AA, 451714-001 EH767AA-AX
LI-ION 9-Cell Battery BJ803AA, BJ803UT BJ803AA-AX
Description Comparable OEM Part # Axiom Part Number
AC-Adapter
65-Watt AC Adapter H6Y82AA, H6Y82UT, G6H47AA H6Y82AA-AX
90-Watt Smart AC Adapter ED495AA ED495AA-AX
Description Comparable OEM Part # Axiom Part Number
Mini USB-C 3.1 Gen2 External Portable SSD
250GB USB-C 3.1 External Portable SSD N/A USBC31M2250-AX
2.5" USB-C 3.1 Gen2 External Portable SSD
250GB USB-C 3.1 External Portable SSD N/A USBC31SSD6E250-AX
500GB USB-C 3.1 External Portable SSD N/A USBC31SSD6E500-AX
1TB USB-C 3.1 External Portable SSD N/A USBC31SSD6E1TB-AX
2TB USB-C 3.1 External Portable SSD N/A USBC31SSD6E2TB-AX
2.5" USB-C 3.1 External Portable SATA 7.2K
1TB USB-C 3.1 External Portable Hard Drive N/A USBC31HD2571TB-AX
2.5" USB-C 3.1 External Portable SATA 5.4K
2TB USB-C 3.1 External Portable Hard Drive N/A USBC31HD2552TB-AX
Description Comparable OEM Part # Axiom Part Number
Batteries
LI-ION 6-Cell Battery EH767AA, 451714-001 EH767AA-AX
LI-ION 9-Cell Battery BJ803AA, BJ803UT BJ803AA-AX
Description Comparable OEM Part # Axiom Part Number
AC-Adapter
65-Watt AC Adapter H6Y82AA, H6Y82UT, G6H47AA H6Y82AA-AX
90-Watt Smart AC Adapter ED495AA ED495AA-AX