The IBM/Lenovo System x3550 M2 4198, 7946 uses DDR3 DIMM ECC REG PC3-8500 1066MHz, ECC REG PC3-10600 1333MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

Need Assistance? Please call and speak with one of our expert technicians at 800-240-8577 or US 404-935-4048 to verify exact system specs before ordering.
Memory Type DDR3 DIMM ECC REG PC3-8500 1066MHz, ECC REG PC3-10600 1333MHz
Base Memory 2 GB (Removable) or 4 GB (Removable) or 8 GB (Removable)
Upgrade Slots 16 Sockets
Maximum Memory 128 GB
Maximum Module Size 8GB
CPU & Chipset Intel Xeon Intel 5500
Bus Architecture PCI; PCI Express; SSD - SATA 2.5-inch 9.5mm
Notes We's DDR3-1333 modules automatically clock down to 1066MHz and 800MHz depending on which Intel Xeon model is installed and how many module Banks are populated. Due to chipset limitations, DDR3 Quad Rank memory is limited to operate at a maximum of 1066MHz. When two Quad Rank modules are installed per bank, the processor will automatically clock them down to 800MHz. System only supports (6) Quad Rank DIMMs per CPU or (12) Quad Rank DIMMs with two CPUs.
Manufacturer Part Numbers
  • 4198-xxx
  • 7946-xxx
Part Number 81.5ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
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Part Number 811ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
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Part Number 82.5ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
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Part Number 821ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$18.99
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Part Number 814ERQTC9
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$24.99
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Part Number 814ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$24.99
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Part Number 81.5ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
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Part Number 811ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
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Part Number 82.5ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
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Part Number 821ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$29.99
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Part Number 824ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$30.99
View Product
Part Number 828ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$35.99
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Part Number 811ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$37.99
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Part Number 821ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$37.99
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Part Number 814ERQTC9H
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$39.99
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Part Number 814ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$39.99
View Product
Part Number 812ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$40.99
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Part Number 822ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$40.99
View Product
Part Number 822ERSTC9
1333MHz 240pin CL9 Registered Single Rank Thermal Sensor ECC
In Stock
$48.99
View Product
Part Number 814ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$49.99
View Product
Part Number 824ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$49.99
View Product
Part Number 828ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$57.99
View Product
Part Number 811ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$59.99
View Product
Part Number 821ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$59.99
View Product
Part Number 824ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$61.99
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Part Number 812ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$64.99
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Part Number 822ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$64.99
View Product
Part Number 828ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$71.99
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Part Number 811ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$74.99
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Part Number 814ERQTC9-3
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$74.99
View Product
Part Number 821ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$74.99
View Product
Part Number 822ERSTC9H
1333MHz 240pin CL9 Registered Single Rank Thermal Sensor ECC
In Stock
$77.99
View Product
Part Number 814ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$79.99
View Product
Part Number 812ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$80.99
View Product
Part Number 822ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$80.99
View Product
Part Number 818ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$92.99
View Product
Part Number 824ERTC9-3
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$92.99
View Product
Part Number 814ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$99.99
View Product
Part Number 824ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$99.99
View Product
Part Number SSD/64G
Call to Order
$99.99
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Part Number 828ERTC9-3
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$106.99
View Product
Part Number 828ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$114.99
View Product
Part Number 811ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$119.99
View Product
Part Number 814ERQTC9-3H
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$119.99
View Product
Part Number 821ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$119.99
View Product
Part Number 824ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$123.99
View Product
Part Number 812ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$129.99
View Product
Part Number 822ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$129.99
View Product
Part Number SSD/32G
Call to Order
$139.99
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Part Number 828ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$142.99
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Part Number SSD/96G
Call to Order
$148.99
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Part Number 818ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$149.99
View Product
Part Number 824ERTC9-3H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$149.99
View Product
Part Number 814ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$159.99
View Product
Part Number SSD/64GH
Call to Order
$159.99
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Part Number 812ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$161.99
View Product
Part Number 822ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$161.99
View Product
Part Number 828ERTC9-3H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$172.99
View Product
Part Number 818ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$185.99
View Product
Part Number 814ERTC9-8
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$198.99
View Product
Part Number 824ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$199.99
View Product
Part Number SSD/32GH
Call to Order
$224.99
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Part Number 828ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$229.99
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Part Number SSD/96GH
Call to Order
$239.99
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Part Number 824ERTC9-8
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$247.99
View Product
Part Number 812ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$259.99
View Product
Part Number 822ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$259.99
View Product
Part Number SSD/128G
Call to Order
$263.99
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Part Number 828ERTC9-8
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$285.99
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Part Number 818ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$299.99
View Product
Part Number 814ERTC9-8H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$319.99
View Product
Part Number 818ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$371.99
View Product
Part Number 824ERTC9-8H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$399.99
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Part Number SSD/256G
Call to Order
$402.99
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Part Number SSD/128GH
Call to Order
$424.99
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Part Number 828ERTC9-8H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$459.99
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Part Number 818ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$599.99
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Part Number SSD/256GH
Call to Order
$649.99
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Part Number 818ERTC9-8
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$743.99
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Part Number SSD/512G
Call to Order
$929.99
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Part Number 818ERTC9-8H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$1199.99
View Product
Part Number SSD/512GH
Call to Order
$1499.99
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Part Number 828ERTC9-8
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$285.99
View Product
Part Number 828ERTC9-8H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$459.99
View Product
Part Number 818ERTC9-8
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$743.99
View Product
Part Number 818ERTC9-8H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$1199.99
View Product
Part Number 828ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$142.99
View Product
Part Number 814ERTC9-8
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$198.99
View Product
Part Number 828ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$229.99
View Product
Part Number 824ERTC9-8
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$247.99
View Product
Part Number 814ERTC9-8H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$319.99
View Product
Part Number 818ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$371.99
View Product
Part Number 824ERTC9-8H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$399.99
View Product
Part Number 818ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$599.99
View Product
Part Number 828ERTC9-3
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$106.99
View Product
Part Number 828ERTC9-3H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$172.99
View Product
Part Number 828ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$71.99
View Product
Part Number 814ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$99.99
View Product
Part Number 828ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$114.99
View Product
Part Number 824ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$123.99
View Product
Part Number 814ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$159.99
View Product
Part Number 818ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$185.99
View Product
Part Number 824ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$199.99
View Product
Part Number 818ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$299.99
View Product
Part Number 814ERQTC9-3
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$74.99
View Product
Part Number 824ERTC9-3
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$92.99
View Product
Part Number 814ERQTC9-3H
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$119.99
View Product
Part Number 824ERTC9-3H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$149.99
View Product
Part Number 828ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$35.99
View Product
Part Number 814ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$49.99
View Product
Part Number 828ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$57.99
View Product
Part Number 824ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$61.99
View Product
Part Number 814ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$79.99
View Product
Part Number 818ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$92.99
View Product
Part Number 824ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$99.99
View Product
Part Number 818ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$149.99
View Product
Part Number 812ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$161.99
View Product
Part Number 822ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$161.99
View Product
Part Number 812ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$259.99
View Product
Part Number 822ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$259.99
View Product
Part Number 814ERQTC9
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$24.99
View Product
Part Number 814ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$24.99
View Product
Part Number 824ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$30.99
View Product
Part Number 814ERQTC9H
1066MHz 240pin CL9 Registered Quad Rank Thermal Sensor ECC
In Stock
$39.99
View Product
Part Number 814ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$39.99
View Product
Part Number 824ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$49.99
View Product
Part Number 811ERTC9-4
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$74.99
View Product
Part Number 821ERTC9-4
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$74.99
View Product
Part Number 812ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$80.99
View Product
Part Number 822ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$80.99
View Product
Part Number 811ERTC9-4H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$119.99
View Product
Part Number 821ERTC9-4H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$119.99
View Product
Part Number 812ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$129.99
View Product
Part Number 822ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$129.99
View Product
Part Number 811ERTC9-2
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$37.99
View Product
Part Number 821ERTC9-2
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$37.99
View Product
Part Number 812ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$40.99
View Product
Part Number 822ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$40.99
View Product
Part Number 822ERSTC9
1333MHz 240pin CL9 Registered Single Rank Thermal Sensor ECC
In Stock
$48.99
View Product
Part Number 811ERTC9-2H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$59.99
View Product
Part Number 821ERTC9-2H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$59.99
View Product
Part Number 812ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$64.99
View Product
Part Number 822ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$64.99
View Product
Part Number 822ERSTC9H
1333MHz 240pin CL9 Registered Single Rank Thermal Sensor ECC
In Stock
$77.99
View Product
Part Number 811ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
View Product
Part Number 821ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$18.99
View Product
Part Number 811ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
View Product
Part Number 821ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
In Stock
$29.99
View Product
Part Number 81.5ERTC9
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
View Product
Part Number 82.5ERTC9
1333MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$18.99
View Product
Part Number 81.5ERTC9H
1066MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
View Product
Part Number 82.5ERTC9H
1333MHz 240pin CL9 Registered Thermal Sensor ECC
Call to Order
$29.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KTM-SX310Q/4G 4GB DDR3 PC3-8500 1066MHz ECC REG Quad Rank Thermal Sensor DIMM Kingston 814ERQTC9
KTM-SX310QK3/12G 12GB Kit of 3 4GB DDR3 PC3-8500 1066MHz ECC REG Quad Rank Thermal Sensor DIMM Kingston 814ERQTC9-3
KTM-SX313/1G 1GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 821ERTC9
KTM-SX313/2G 2GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 822ERTC9
KTM-SX313/4G 4GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 824ERTC9
KTM-SX313/8G 8GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 828ERTC9
KTM-SX313K3/6G 6GB Kit of 3 2GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 822ERTC9-3
KTM-SX313K3/12G 12GB Kit of 3 4GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 824ERTC9-3
KTM-SX313K3/24G 24GB Kit of 3 8GB DDR3 PC3-10600 1333MHz ECC REG Thermal Sensor DIMM Kingston 828ERTC9-3
SNE125-S2/32GB 32GB Solid State Drive Kingston SSD/32G
SNE125-S2/64GB 64GB Solid State Drive Kingston SSD/64G
KTM-SX313S/2G 2GB DDR3 PC3-10600 1333MHz ECC REG Single Rank Thermal Sensor DIMM Kingston 822ERSTC9
SVP100S2/96G 96GB Solid State Drive Kingston SSD/96G
SVP100S2/128G 128GB Solid State Drive Kingston SSD/128G
SVP100S2/256G 256GB Solid State Drive Kingston SSD/256G
SVP100S2/512G 512GB Solid State Drive Kingston SSD/512G
SVP100S2B/96G 96GB Kit of 2 48GB Solid State Drive Kingston SSD/48G-2
SVP100S2B/128G 128GB Kit of 2 64GB Solid State Drive Kingston SSD/64G-2
SVP100S2B/256G 256GB Kit of 2 128GB Solid State Drive Kingston SSD/128G-2
SVP100S2B/512G 512GB Kit of 2 256GB Solid State Drive Kingston SSD/256G-2