![4GB (2GBx2) Team High Performance Memory RAM Upgrade For HP - Compaq ProBook 4310s (Intel GL40 Chipset) 5310m 5320m Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com 4GB (2GBx2) Team High Performance Memory RAM Upgrade For HP - Compaq ProBook 4310s (Intel GL40 Chipset) 5310m 5320m Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com](https://m.media-amazon.com/images/I/5101JbRYezL._AC_UF894,1000_QL80_.jpg)
4GB (2GBx2) Team High Performance Memory RAM Upgrade For HP - Compaq ProBook 4310s (Intel GL40 Chipset) 5310m 5320m Laptop. The Memory Kit comes with Life Time Warranty. at Amazon.com
![A-Tech 8GB KIT (2 x 4GB) For HP-Compaq ProBook Series 4230s 4310s (Intel PM/GM45 Chipsets) 4311s 4320s 4321s 4325s 4326s 4330s 4331s 4340s 4341s 4420. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory A-Tech 8GB KIT (2 x 4GB) For HP-Compaq ProBook Series 4230s 4310s (Intel PM/GM45 Chipsets) 4311s 4320s 4321s 4325s 4326s 4330s 4331s 4340s 4341s 4420. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory](https://m.media-amazon.com/images/I/61MDA2ZxW2L._AC_UF894,1000_QL80_.jpg)
A-Tech 8GB KIT (2 x 4GB) For HP-Compaq ProBook Series 4230s 4310s (Intel PM/GM45 Chipsets) 4311s 4320s 4321s 4325s 4326s 4330s 4331s 4340s 4341s 4420. SO-DIMM DDR3 NON-ECC PC3-10600 1333MHz RAM Memory
![CMS 8GB (2X4GB) DDR3 10600 1333MHZ NON ECC SODIMM Memory Ram Compatible with HP/Compaq Probook 4210S, 4230S, 4310S, 4320S, 4321S - A29 - Walmart.com CMS 8GB (2X4GB) DDR3 10600 1333MHZ NON ECC SODIMM Memory Ram Compatible with HP/Compaq Probook 4210S, 4230S, 4310S, 4320S, 4321S - A29 - Walmart.com](https://i5.walmartimages.com/asr/aeffeced-91c2-4ac2-9199-e04ceecd8926_1.c3a07518de0d06bcc2d786437ca18e6e.jpeg)