HP 3X-MS7AC-DA 4GB MEMORY KIT FOR HP ALPHASERVER ES47, ES80 OR GS1280. CONSISTS OF QTY 4  20-1F18B-01 1GB 1066MHZ 32NS RDRAM RIMMS.  ALL ARE HP REFURBISHED AND HP BRANDED,  A 30 DAY WORKING WARRANTY APPLIES. PLEASE MESSAGE, OR CALL KEVIN AT 217-598-2424 EXT 11 IF YOU HAVE ANY QUESTIONS OR CONCERNS.