Overview Product Description HY57V641620HG.pdf Product Videos Custom Field Product Reviews Write a Review Write a Review × Hynix HY57V641620HG ; Memory DRAM 4 Banks x 1Mx16bit, TSOP-54 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *