HP 733036-581 is a refurbished 4GB DDR3 memory module for adding memory to a compatible desktop or server system. Its PC3-14900E specification and 1866MHz data rate identify this particular memory variant.
The module is ECC Unbuffered with a single-rank layout, CL13 timing and a 240-pin DIMM form factor. ECC memory is designed to detect and correct certain memory errors, while the unbuffered design describes its module type. Its specified operating voltage is 1.50V.