Replacement for X8503A: Drop-In Alternatives We Stock
Looking for a replacement for the X8503A (X8503A - Sun 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the X8503A
| SKU | X8503A |
|---|---|
| Product | X8503A - Sun 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory |
| Current price | $236.54 |
| Stock status | In Stock |
| Detail page | View X8503A › |
Drop-in replacements for X8503A
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
96Y8787 - IBM 6GB Kit (3 X 2GB) DDR3-1333MHz PC3-10600 DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Single Rank Memory
SKU: 96Y8787
Price: $231.32
Kingston KTM-SX313SK3/6G 6GB Kit (3x2GB) DDR3-1333MHz PC3-10600 DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Memory
SKU: KTM-SX313SK3-6G
Price: $193.76
SE6X2A11Z - Sun 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Memory for SPARC T3 Server
SKU: SE6X2A11Z
Price: $234.80
Dataram DRST3/4GB 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory
SKU: DRST3-4GB
Price: $157.04
Dataram DRH890I2/4GB 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory
SKU: DRH890I2-4GB
Price: $158.17
Dataram DRFT3/4GB 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory
SKU: DRFT3-4GB
Price: $158.17
Dataram DRH2800I2/4GB 4GB Kit (2 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory for Integrity rx2800 i2
SKU: DRH2800I2-4GB
Price: $158.17
SE6X2B11Z - Sun 8GB Kit (2 x 4GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory
SKU: SE6X2B11Z
Price: $105.26
7101696 - Sun / Oracle 8GB Kit (2 X 4GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Dual Rank Memory
SKU: 7101696
Price: $254.86
SE6Y2B11Z - Sun 8GB Kit (2 X 4GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Memory
SKU: SE6Y2B11Z
Price: $254.86
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.