HP 4GB DDR3L-1600 1.35V SODIMM Laptop Memory Specifications: General Capacity 4 GB Upgrade Type System specific Memory Type DRAM Technology DDR3L SDRAM Form Factor SO-DIMM 204-pin Speed 1600 MHz (PC3-12800 ) Data Integrity Check Non-ECC Features Unbuffered Voltage 1.35 V Compatibility Information Designed For HP 250 G4 HP Elite Book 2170p, 2560p, 2760p, 725 G2, 745 G2, 755 G2, 820 G1, 820 G2, 840 G1, 840 G2, 8460p, 8460w, 8470p, 8470w, 850 G1, 850 G2, 8560p, 8560w, 8570p, 8570w, 8760w, 8770w HP Elite Book Folio 1020 G1, 9470m HP Elite Book Revolve 810 G1 Tablet HP Envy Pro HP Mobile Thin Client 6360t HP Pro Book 4230s, 430 G1, 4330s, 4331s, 4340s, 440 G3, 4430s, 4431s, 4435s, 4436s, 4440s, 450 G0, 450 G1, 4530s, 4535s, 4540s, 4545s, 455 G1, 470 G0, 470 G1, 4730s, 4740s, 6360b, 640 G1, 645 G1, 6460b, 6465b, 6470b, 6475b, 650 G1, 655 G1, 6560b, 6565b, 6570b HP x 360 310 G1 HP ZBook 15 Mobile Workstation, 15u G2 Mobile Workstation, 17 Mobile Workstation