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Guaranteed compatible upgrades for:

IBM/Lenovo ThinkServer E31

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Black 4TB 7200RPM 128MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive
Crucial MX500 2TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 2TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Save $5.01
WD Blue 4TB 5400RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Blue 4TB 5400RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

Save $27.10
WD Blue 3TB 5400RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Blue 3TB 5400RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive
Crucial MX500 1TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 1TB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)
Crucial 8GB (1x 8GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 ECC 240-pin EUDIMM RAM Module

Crucial 8GB (1x 8GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 ECC 240-pin EUDIMM RAM Module
WD Blue 2TB 5400RPM 256MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Blue 2TB 5400RPM 256MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive
WD Blue 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive

WD Blue 1TB 7200 RPM 64MB Cache SATA 6.0Gb/s 3.5" Desktop Internal Hard Drive
Crucial MX500 500GB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Crucial MX500 500GB 2.5" 7mm SATA III Internal SSD (with 7mm to 9.5mm spacer)

Save $2
Micron 4GB (1x 4GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 ECC 240-pin EUDIMM RAM Module

Micron 4GB (1x 4GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 ECC 240-pin EUDIMM RAM Module
Crucial MX500 250GB 2.5" 7mm SATA III Internal SSD

Crucial MX500 250GB 2.5" 7mm SATA III Internal SSD

Save $0.10
Crucial 8GB (1x 8GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 240-pin UDIMM RAM Module

Crucial 8GB (1x 8GB) DDR3L-1600 PC3L-12800 1.35V / 1.5V DR x8 240-pin UDIMM RAM Module

Save $19.99
Samsung 4GB (1x 4GB) DDR3-1600 PC3-12800 1.5V SR x8 240-pin UDIMM RAM Module

Samsung 4GB (1x 4GB) DDR3-1600 PC3-12800 1.5V SR x8 240-pin UDIMM RAM Module

Save $10
Samsung 4GB (1x 4GB) DDR3-1600 PC3-12800 1.5V SR x8 240-pin UDIMM RAM Module

Samsung 4GB (1x 4GB) DDR3-1600 PC3-12800 1.5V SR x8 240-pin UDIMM RAM Module

Save $10
NewerTech AdaptaDrive 2.5" to 3.5" Drive Converter Bracket

NewerTech AdaptaDrive 2.5" to 3.5" Drive Converter Bracket

Save $5
Ramcity USB3.0/2.0 USB-A to SATA 2.5-inch cloning Cable

Ramcity USB3.0/2.0 USB-A to SATA 2.5-inch cloning Cable
System Specifications
Maximum Memory:
  • 32GB
Expansion:
  • 4 Sockets
Standard Memory:
  • 4GB (Removable) or
  • 8GB (Removable)
CPU/Chipset:
  • Intel Xeon Intel C216
  • Intel Core i7 Intel C216
  • Intel Core i5 Intel C216
  • Intel Core i3 Intel C216
Bus Architecture:
  • PCI; PCI Express; SSD - SATA 3.5-inch; USB 2.0/3.x Type-A
Mfr's System P/N's:
  • 2552-xxx; 2553-xxx; 2555-xxx; 3688-xxx; 3690-xxx; 3691-xxx; 3695-xxx
Upgrade Path:
  • Configurations up to 32GB can be reached using 4GB and 8GB modules.