Description
| Specification | Details |
|---|---|
| Brand | Samsung |
| Model | 870 EVO (MZ‑77E250B) |
| Capacity | 250 GB |
| Form Factor | 2.5″ × 7 mm |
| Interface / Protocol | SATA III (6 Gbps) / AHCI |
| Controller | Samsung MKX ‘Metis’ |
| DRAM Cache | 512 MB LPDDR4 |
| Flash Type | 128-layer TLC V‑NAND |
| Sequential R/W Speed | Up to 560 MB/s read- 530 MB/s write |
| Random Performance | ~98K IOPS read- ~88K IOPS write |
| TurboWrite Buffer | 12 GB |
| Endurance (TBW) | 150 TBW |
| Warranty | 5 years |
| Power Consumption | ~0.03 W idle- ~2.2 W average- ~3.5 W max |
| Software Support | Samsung Magician (monitoring- firmware- optimization) |
| Compatibility | Desktops & laptops with standard SATA bays- Windows/macOS/Linux |
Samsung 870 EVO 250 GB SATA III (6 Gbps) 2.5″ SSD – Full Description
Reliable High-End SATA Upgrade
The Samsung 870 EVO 250 GB (model MZ‑77E250B series) is a premium SATA III internal SSD designed for desktops and laptops. It delivers exceptional performance- strong endurance- and modern NAND technology at a competitive price.
Fast Performance with Intelligent TurboWrite
Powered by Samsung’s own MKX controller- paired with 128-layer TLC V‑NAND and 512 MB LPDDR4 DRAM cache- this drive achieves sequential read speeds up to 560 MB/s and write speeds up to 530 MB/s. A 12 GB Intelligent TurboWrite buffer helps maintain high speeds during sustained writes.
Impressive Responsiveness in Real‑World Usage
Random read/write performance reaches up to 98-000 / 88-000 IOPS- ensuring fast OS boot- application launch- and multitasking. Superior drive health and consistent performance are enabled through TRIM and ECC support.
Endurance & Warranty You Can Trust
Rated for 150 TBW endurance and supported by a 5-year limited warranty- the 870 EVO offers solid long-term reliability for both light and moderate everyday workloads.
Seamless Compatibility & Samsung Software
Built in a 2.5″ × 7 mm form factor- the SSD is compatible with virtually all standard SATA bays. Samsung’s Magician software provides firmware updates- drive health monitoring- secure erase- cloning- and performance optimization.
Frequently Asked Questions
Q: How does the 870 EVO compare to HDDs?
A: It delivers dramatically faster speeds—boot times- file access- and app launches are significantly quicker compared to mechanical drives.
Q: What happens once the 12 GB TurboWrite cache is full?
A: Write speeds may drop to around 300 MB/s- still faster than most HDDs but lower than its peak burst performance.
Q: Is it suitable for heavy workloads like video editing or servers?
A: While capable- the 250 GB model (150 TBW) is best for everyday computing. Users requiring heavier writes or longer-term durability may consider higher capacities.
Q: Can I use it with macOS or Linux?
A: Yes. It supports all standard platforms including Windows- macOS- and Linux via SATA interface.
Q: What makes it better than NVMe SSDs?
A: Only NVMe drives offer faster speeds. However- the 870 EVO remains a top-tier choice for SATA-based upgrades due to its proven reliability and compatibility.