The 4 position connector used on Seeed Technology Co., Ltd expansion board 1597-1745-ND (Seeed Tech # 101020603) is Digi-Key part number 1597-114020164-ND (Seeed Technology # 114020164).
The 4 position connector used on Seeed Technology Co., Ltd expansion board 1597-1745-ND (Seeed Tech # 101020603) is Digi-Key part number 1597-114020164-ND (Seeed Technology # 114020164).