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| Brand | Samsung |
|---|---|
| Model | 870 EVO |
| Capacity | 500 GB |
| Usage Class | Client / Consumer |
| Host Interface | SATA 6.0 Gbps |
|---|---|
| Total Interface Bandwidth | 6 Gb/s |
| Form Factor | 2.5" |
|---|
| NAND Flash | Samsung V-NAND 3-bit TLC |
|---|---|
| Drive Writes Per Day | 0.33 |
| Total Bytes Written | 300 TBW |
| Sequential Read | 560 MB/s |
|---|---|
| Sequential Write | 530 MB/s |
| Random Read IOPS | 98000 |
| Random Write IOPS | 88000 |
| Average Latency | 50 μs |
| Mean Time Between Failures | 1.5 Million Hours |
|---|---|
| Uncorrectable Bit Error Rate | 1.0×10⁻¹⁷ |
| Power Loss Protection | No |
| MPN | MZ7LH960HAJR |
|---|
Compared with the older MZ7LH960HAJR, the Samsung 870 EVO MZ-77E500 brings a newer Samsung V-NAND 3-bit TLC SATA platform that delivers up to 560/530 MB/s and 98,000/88,000 IOPS, providing stronger SATA-saturating performance and noticeably better responsiveness for boot, application, and light workstation workloads. With 300 TBW endurance at 500 GB and a balanced 0.33 DWPD rating, this model is a particularly strong choice for client refreshes and read-heavy edge systems that need proven reliability without moving to a higher-cost NVMe design.
With an endurance rating of 300 TBW and 0.33 DWPD, the MZ-77E500 can sustain about 82 GB of host writes per day over its warranty period, which is more than sufficient for typical OS, office, POS, kiosk, and light application workloads. In practical terms, when used as a boot or system drive under normal business usage, this level of endurance supports many years of reliable service without concern about write wear. From a reliability perspective, the specified UBER of 1.0E-15 and MTBF of 1.5 million hours indicate a mature, stable platform suitable for standard commercial deployments. This model does not include power-loss protection, so it is best positioned for client or edge systems where sudden power interruption is controlled by a stable power environment or UPS, rather than for write-critical enterprise caching or transactional applications.
1. The SATA 6.0 Gbps interface paired with 560 MB/s sequential read performance lets the MZ-77E500 fully utilize legacy server backplanes, making it a practical upgrade for faster boot, backup, and bulk data access without changing existing SATA infrastructure.
2. With 98,000 random-read IOPS, this drive can handle metadata lookups, virtual desktop bursts, and heavily indexed database reads with noticeably better responsiveness under multi-user workloads.
3. A typical latency of 50 µs helps reduce storage wait time for small-block transactions, supporting smoother application response in read-sensitive enterprise environments.
4. Rated at 0.33 DWPD, the SSD is best aligned with read-dominant business use cases such as content repositories, boot volumes, and analytics datasets where consistent access matters more than intensive daily overwrites.
5. Samsung V-NAND 3-bit TLC enables a balanced mix of capacity, power efficiency, and cost control, making the drive suitable for scaling enterprise flash tiers where budget and density are both important.
Lower capacity reference: 250 GB Higher capacity reference: 1 TB In the MZ-77E series, the 500 GB model sits at the practical sweet spot. Compared with the 250 GB version, it offers much better headroom for OS images, logs, patch growth, and application data, reducing the risk of early capacity pressure. Compared with the 1 TB option, it keeps acquisition cost and fleet-wide refresh budgets more controlled while delivering essentially the same mainstream SATA performance profile. This makes 500 GB especially well suited for mid-scale deployments, such as boot and application drives for about 40 to 60 lightweight virtual desktops or edge servers.
Q: Is MZ-77E500 suitable for a write-heavy database server?
A: Not ideally. With 0.33 DWPD, 300 TBW, and TLC V-NAND, the MZ-77E500 is better for client, boot, or light mixed workloads than sustained write-heavy database server use.
Q: How many full drive writes per day can it actually endure over its warranty period?
A: Its endurance rating is 0.33 DWPD, meaning about one-third of the 500 GB capacity can be written daily over the warranty term, roughly 165 GB per day.
Q: Does it include power loss protection (PLP) and why is that critical?
A: No, this model does not include PLP. PLP is critical in servers because it helps protect in-flight data and flash mapping metadata during unexpected power interruptions.
Q: What RAID level is recommended for this SSD?
A: For reliability-focused deployments, RAID 1 or RAID 10 is recommended. RAID 10 is preferred when both redundancy and better performance are needed, especially for business or server environments.