Samsung PM863a 960GB enterprise SATA SSD, MZ-7LM960N, firmware GXT5204Q. Two available, each individually bench tested on 8 October 2026: both 99% health, 0 reallocated sectors, 0 CRC errors, secure erased with ATA Security Erase Enhanced, verified genuine 960GB with f3probe, and a full-surface read of every LBA with 0 bad blocks. One drive has 2.0 TB written over 2,486 power-on hours, the other 4.9 TB over 2,420 hours. Per-drive bench reports are in the photos. Data-centre drive with power-loss protection. Free shipping from Texas, 30-day returns.
lcdreamin
lcdreamin
What you see is what you get.

Samsung PM863a 960GB Enterprise SATA SSD — 99% Health, Tested & Wiped

MZ-7LM960N · SATA 6Gb/s · 2.5″ 7mm · power-loss protection · two available
Two of these are available and they are not identical, so both are documented separately below and both bench reports are in the photos. Whichever one ships, I read the full serial at pack-out and send it to you, so you can match it to its report.

What the bench run found

Every figure below is from this drive. I am not averaging across a batch or quoting a best case, and the full report for each drive is one of the photos — read it before you buy.

Drive ending 0389

SMART overallPASSED
Health remaining (attr 177)99%
Total host writes2.0 TB
Power-on hours2,486
Power cycles58
Reallocated sectors0
Used reserved blocks0
Program / erase failures0
Uncorrectable errors0
SATA CRC errors0
Full-surface read0 bad blocks

Drive ending 0383

SMART overallPASSED
Health remaining (attr 177)99%
Total host writes4.9 TB
Power-on hours2,420
Power cycles44
Reallocated sectors0
Used reserved blocks0
Program / erase failures0
Uncorrectable errors0
SATA CRC errors0
Full-surface read0 bad blocks

What was done to it

Why a PM863a and not a consumer SSD

This is a data-centre drive, not a desktop one. It has power-loss protection — onboard capacitors that let in-flight writes finish if the power drops — which is the reason these turn up in NAS boxes, ZFS pools and virtualisation hosts where a consumer drive is a liability. It is a steady-state workhorse rather than a burst-speed drive: expect consistent write performance under sustained load instead of a fast first few seconds.

Specifications

ModelSamsung PM863a, MZ-7LM960N (P/N MZ7LM960HMJP-00005)
Capacity960 GB
InterfaceSATA III, 6 Gb/s
Form factor2.5 inch, 7 mm z-height
FirmwareGXT5204Q
Date code2017.11
ClassData-centre / enterprise SATA SSD with power-loss protection
NANDSamsung 3D V-NAND, TLC

What you get

Shipping
Free shipping — USPS Ground Advantage, from Texas, within 2 business days. Ships in an anti-static bag inside a rigid box, not a bubble mailer.
Returns
30-day returns, buyer pays return shipping. I photograph and log the full serial before the box is sealed and send it to you when it ships, and I check it again on arrival — so please send back the same drive.
Questions
Message me through eBay before you buy. Happy to send more photos or answer anything about the test results.
lcdreamin · What you see is what you get.