Engineering Abbreviations
"A",
"B",
"C",
"D",
"E",
"F",
"G",
"H",
"I",
"J",
"K",
"L",
"M",
"N",
"O",
"P",
"Q",
"R",
"S",
"T",
"U",
"V",
"W",
"X",
"Y",
"Z"
Memory Module Physical Sizes
DIMM Dimensions are Length x Height x Width
DIMM = Dual In-Line Memory Module
FBDIMM [133.50mm x 30.51mm x 5.1mm L x H x W]
FBDIMM = Fully Buffered DIMM
Found in 240-pin DIMM DDR2 Modules
mini-DIMM [82.127mm x 30.099mm x 3.80mm L x H x W]
mini-Dual In-Line Memory Module
Found in 244-pin DIMM DDR2 Modules
mini-RDIMM [82.127mm x 30.152mm x 3.80mm L x H x W]
mini Registered DIMM
Found in 244-pin DIMM DDR2 Modules
RDIMM [133.50mm x 30.50mm x 4.0mm L x H x W]
Registered DIMM
Found in 240-pin DIMM DDR2 Modules
SODIMM [67.75mm x 30.15mm x 3.8mm L x H x W]
Small Outline DIMM
Found in 200-pin DIMM DDR2 Modules
SOCDIMM [67.75mm x 30.15mm x 3.8mm L x H x W]
Small Outline Clocked DIMM
Found in 200-pin DIMM DDR2 Modules
SORDIMM [67.75mm x 30.15mm x 3.8mm L x H x W]
Small-Outline Registered DIMMs
Found in 200-pin DIMM DDR2 Modules
UDIMM [133.50mm x 30.50mm x 4.0mm L x H x W]
Unbuffered DIMM
Found in 240-pin DIMM DDR2 Modules
ULP-DIMM [133.5mm x 17.78mm x 3.8mm L x H x W]
Ultra Low Profile DIMM
Found in 240-pin DIMM DDR2 Modules
VLP Mini-RDIMM [82.127mm x 18.03mm x 3.8mm L x H x W]
Very Low Profile memory Mini-RDIMM
Found in 244-pin DIMM DDR2 Modules
VLP-RDIMM [133.50mm x 18.05mm x 4.0mm L x H x W]
Very Low Profile memory-RDIMM
Found in 240-pin DIMM DDR2 Modules
VLP SORDIMM [67.75mm x 18.00mm x 3.8mm L x H x W]
Very Low Profile Small-Outline Registered DIMM
Found in 200-pin DIMM DDR2 Modules
Note some data sheets indicate 0.72 inches for VLP height.
