![Amazon.com: A-Tech 8GB RAM for DELL Vostro 15 5581 | DDR4 2666 SODIMM PC4-21300 1.2V 260-Pin Memory Upgrade Module : Electronics Amazon.com: A-Tech 8GB RAM for DELL Vostro 15 5581 | DDR4 2666 SODIMM PC4-21300 1.2V 260-Pin Memory Upgrade Module : Electronics](https://m.media-amazon.com/images/I/71altGUkOfL.jpg)
Amazon.com: A-Tech 8GB RAM for DELL Vostro 15 5581 | DDR4 2666 SODIMM PC4-21300 1.2V 260-Pin Memory Upgrade Module : Electronics
![Memory RAM | 4GB - Dell Vostro 15 - 5581 5000-Series - (OEM-# SNPKN2NMC/4G, AA086413) - 2666MHz, Unbuffered, 1,2V Memory RAM | 4GB - Dell Vostro 15 - 5581 5000-Series - (OEM-# SNPKN2NMC/4G, AA086413) - 2666MHz, Unbuffered, 1,2V](https://www.compuram.biz/bilder/produkte/ram/ddr4_so-dimm-f2.jpg)
Memory RAM | 4GB - Dell Vostro 15 - 5581 5000-Series - (OEM-# SNPKN2NMC/4G, AA086413) - 2666MHz, Unbuffered, 1,2V
![OFFTEK 4GB Replacement Memory RAM Upgrade for Dell Vostro 5581 (DDR4-21300 (PC4-2666)) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for Dell Vostro 5581 (DDR4-21300 (PC4-2666)) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61PiAOQG2NL._AC_UF894,1000_QL80_.jpg)
OFFTEK 4GB Replacement Memory RAM Upgrade for Dell Vostro 5581 (DDR4-21300 (PC4-2666)) Laptop Memory at Amazon.com
![parts-quick 8GB Memory for Dell Vostro 15 (5581) 1Rx8 Compatible RAM DDR4 2666MHz SODIMM at Amazon.com parts-quick 8GB Memory for Dell Vostro 15 (5581) 1Rx8 Compatible RAM DDR4 2666MHz SODIMM at Amazon.com](https://m.media-amazon.com/images/I/61BXdQMxDSL.jpg)
parts-quick 8GB Memory for Dell Vostro 15 (5581) 1Rx8 Compatible RAM DDR4 2666MHz SODIMM at Amazon.com
![OFFTEK 4GB Replacement Memory RAM Upgrade for Dell Vostro 5581 (DDR4-21300 (PC4-2666)) Laptop Memory at Amazon.com OFFTEK 4GB Replacement Memory RAM Upgrade for Dell Vostro 5581 (DDR4-21300 (PC4-2666)) Laptop Memory at Amazon.com](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/71nBR0kPxZL._AC_UF350,350_QL80_.jpg)