19" 1U, 1xPSU, 1xLGA1151, up to 64GB (2 slots) DDR4, 2x3.5" fixed drive bay

19" 1U, 1xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 2x3.5" fixed drive bay

19" 1U, 1xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 4x3.5" hot-swap drive bay

19" 1U, 2xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 4x3.5" hot-swap drive bay

19" 1U, 1xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 8x2.5" hot-swap drive bay

19" 1U, 2xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 8x2.5" hot-swap drive bay

19" 1U, 1xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 8x2.5" hot-swap drive bay

19" 1U, 2xPSU, 1xLGA1151, up to 128GB (4 slots) DDR4, 8x2.5" hot-swap drive bay

19" 1U, 1xPSU, 1xLGA3647, up to 768GB (6 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 2xPSU, 1xLGA3647, up to 768GB (6 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 1xPSU, 1xLGA3647, up to 768GB (6 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 2xPSU, 1xLGA3647, up to 768GB (6 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 2xPSU, 1xLGA2066, up to 256GB (4 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 1xPSU, 1xLGA2066, up to 256GB (4 slots) DDR4, 4x3.5" SAS/SATA hot-swap drive bay

19" 1U, 1xPSU, 1xLGA2066, up to 256GB (4 slots) DDR4, 2x3.5" fixed drive bay