Replacement for RX300S3: Drop-In Alternatives We Stock
Looking for a replacement for the RX300S3 (RX300S3 - Fujitsu PRIMERGY RX300 S3 2.6GHz Quad-Core 4GB RAM 144GB (2x73GB) HDD Rack Server)? 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 RX300S3
| SKU | RX300S3 |
|---|---|
| Product | RX300S3 - Fujitsu PRIMERGY RX300 S3 2.6GHz Quad-Core 4GB RAM 144GB (2x73GB) HDD Rack Server |
| Current price | $2,139.51 |
| Stock status | In Stock |
| Detail page | View RX300S3 › |
Drop-in replacements for RX300S3
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.
PR200B - Fujitsu PRIMERGY RX200 S5 Intel Xeon L5506 2.13GHz Quad-Core CPU 2GB RAM Server System
SKU: PR200B
Price: $1,074.20
490427-001 - HP ProLiant DL160 G6- 1x Intel Xeon Quad Core E5504/2.0GHz 4GB Ram 1x 60GB SATA HDD 2x Gigabit Ethernet 1u Rack Server
SKU: 490427-001
Price: $707.37
601567-005 - HP ProLiant Ml330 G6 S-Buy- 1x Xeon Quad Core E5620/2.40GHz 4GB Ram 2x250GB HDD Dvd Rom 2x Gigabit Ethernet 5u Tower Server
SKU: 601567-005
Price: $1,005.26
686232-S01 - HP Proliant ML310e Gen 8 Quad Core E3-1220V2 3.1GHz 4GB RAM No HDD
SKU: 686232-S01
Price: $1,152.63
MCS7835 - HP / Cisco MCS 7835 Series Intel Xeon 3.4GHz Dual-Core CPU 2GB RAM 144GB (2x72GB) Server System
SKU: MCS7835
Price: $9,232.72
MCS-7845 - HP / Cisco MCS 7845 Series 3.4GHz CPU 4GB RAM 144GB (4x72GB) Server System
SKU: MCS-7845
Price: $9,232.72
483448-B21 - HP ProLiant ML350 G6 Barebone System Intel 5520 Socket B Xeon (Dual-core) Xeon (Quad Core) 144GB Memory Support Gigabit Ethernet 5U Tower
SKU: 483448-B21
Price: $1,047.37
483879-B21 - HP ProLiant ML370 G6 Barebone System Intel 5520 Socket B Xeon (Dual-core) Xeon (Quad-core) 144GB Memory Support Gigabit Ethernet 4U Tower
SKU: 483879-B21
Price: $4,092.58
HDD-7845-H1-144 - Cisco 144GB Ultra-320 SCSI 3.5-inch Hard Drive for MCS-7845-H1
SKU: HDD-7845-H1-144
Price: $555.54
445196-001 - HP ProLiant Dl160 G5 Intel Xeon E5405 Quad Core 2.0GHz CPU 1GB RAM SATA 160GB HDD 1u Rack Server
SKU: 445196-001
Price: $440.00
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.