It can replace the following part numbers of Dell:
312-0451, 451-10284, RC107, Y9943

Battery Type: Li-ion
Voltage: 11.10V
Capacity: 4400mAh
Color: Black
Dimension: 206.70 x 49.00 x 23.80 mm
Product Type: Replacement Battery (Brand New)

This replacement battery is compatible with the following models of Dell:

DELL 
    Dell Inspiron 630m,
    Dell Inspiron 640m,
    Dell Inspiron E1405,
    Dell XPS M140