Four brands dominate enterprise SSDs. Each has strengths in different categories — here is how they compare. Brand Comparison Brand Strength Popular Lines Samsung NVMe performance leader PM9A3, PM1743 Micron Value + endurance balance 7450, 9400 Kioxia Capacity tier, competitive pricing CM7, PM7 Intel/Solidigm Optane (ultra-low latency) P5620, D7-P5520 Note: Dell, HPE, and Lenovo rebrand […]
SSD
Dell PowerEdge R640 SSD Upgrade: Compatible NVMe and SAS Drives
The Dell PowerEdge R640 (14G) supports SAS SSDs, SATA SSDs, and NVMe U.2 drives. The number and type depend on your backplane configuration. Drive Options Config Bays Interface 8 SFF 8x 2.5″ SAS/SATA/NVMe 10 SFF 10x 2.5″ SAS/SATA (8) + NVMe (2) 4 LFF 4x 3.5″ SAS/SATA only Browse R640 drives | R640 RAID controllers
Server Parts Pricing Trends 2026: Memory, SSD, CPU Market Analysis
Server parts pricing fluctuates with supply and demand. Here is what is happening in 2026 across the three biggest component categories. Memory DDR4 prices stabilizing — mature market, abundant supply DDR5 prices declining — production ramping, approaching DDR4 parity Best time to buy DDR4 for 14G/Gen10 servers SSDs NAND oversupply continues — SAS and SATA […]
Server SSD Endurance: TBW, DWPD, and What They Mean for Enterprise Storage
SSD endurance ratings (TBW and DWPD) determine how long a drive lasts under write-heavy workloads. Choosing the wrong endurance tier can lead to premature drive failure. Endurance Tiers Tier DWPD Use Case Read Intensive (RI) 1 DWPD Read-heavy: web, CDN, analytics Mixed Use (MU) 3 DWPD General: VMs, databases, email Write Intensive (WI) 10+ DWPD […]
NVMe vs SAS SSD for Servers: When to Use Each in 2026
Both NVMe and SAS SSDs are enterprise-grade, but they serve different purposes. This guide helps you choose the right interface for your workload. Head-to-Head Comparison Feature NVMe SSD SAS SSD Interface PCIe 4.0/5.0 12Gbps SAS Random Read IOPS 1M+ 200-400K Latency 10-20 microseconds 50-100 microseconds Dual-Port No (typically) Yes RAID Support Software/HW (PERC H755) Hardware […]
868818-B21 — HPE 480GB SATA SSD 2.5-inch SFF Mixed Use SC Digitally Signed | Technical Guide
Overview The HPE 868818-B21 is a 480GB SATA SSD in a Smart Carrier 2.5-inch hot-plug tray for HPE ProLiant Gen9 and Gen10 servers. SATA SSDs are the most cost-effective flash storage option, ideal for boot drives, OS volumes, and light application workloads. The 480GB capacity handles Windows Server, VMware ESXi, or Linux installations with ample […]
P28610-B21 — HPE 1.6TB NVMe SSD 2.5-inch SFF Mixed Use SC Digitally Signed | Technical Guide
Overview The HPE P28610-B21 is a 1.6TB NVMe SSD in a Smart Carrier 2.5-inch U.2 tray for HPE ProLiant Gen10 Plus servers. This is the high-capacity variant of the P28586-B21, doubling storage while maintaining the same NVMe PCIe Gen4 performance envelope. The 1.6TB capacity with Mixed Use endurance (3 DWPD) makes it the premium choice […]
P28586-B21 — HPE 960GB NVMe SSD 2.5-inch SFF Mixed Use SC Digitally Signed | Technical Guide
Overview The HPE P28586-B21 is a 960GB NVMe SSD in a Smart Carrier 2.5-inch hot-plug tray for HPE ProLiant Gen10 Plus servers. NVMe delivers a massive performance leap over SAS — communicating directly with the CPU over PCIe Gen4 lanes for up to 6x throughput and dramatically lower latency. This Mixed Use drive is built […]
P19903-B21 — HPE 1.92TB SAS SSD 2.5-inch SFF Read Intensive SC Digitally Signed | Technical Guide
Overview The HPE P19903-B21 is a 1.92TB SAS SSD in a Smart Carrier 2.5-inch tray, optimized for Read Intensive workloads on HPE ProLiant Gen10 and Gen10 Plus servers. At nearly 2TB, this drive provides substantial flash capacity for read-heavy applications: content serving, data warehouses, boot volumes for dense VM environments, and caching tiers. The Read […]
P18434-B21 — HPE 960GB SAS SSD 2.5-inch SFF Mixed Use SC Digitally Signed | Technical Guide
Overview The HPE P18434-B21 is a 960GB SAS SSD in a Smart Carrier (SC) 2.5-inch hot-plug tray for HPE ProLiant Gen10 and Gen10 Plus servers. HPE’s Digitally Signed Firmware ensures the drive firmware hasn’t been tampered with — a security feature validated by iLO during every boot. The Mixed Use endurance rating (3 DWPD) makes […]