DatacenterDisk
Samsung

PM1643a 7.68TB SAS SSD

MZILT7T6HALA-00007
PM1643aoltpTLC7.68TBSAS-12G2.5"
$345.05/TB
$2,650.00
newIn Stock
Updated Mar 25, 2026, 05:51 AM
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Quick Verdict

The Samsung PM1643a 7.68TB SAS SSD is a 7.68TB SAS-12G enterprise drive at $345.05/TB - Verify recording technology before use in RAID. New unit with full 5-year warranty.

Specifications

Capacity7.68TB
Form Factor2.5"
InterfaceSAS-12G
Recording TechTLC
Sector Size—
Workload Rating—
DWPD1
TBW14016TB
Warranty5 years
ASINB0B5KKR595

90-Day Price History

$128$246$36303/2304/2906/05
How it compares - 7.68TB SAS-12G
#1Samsung PM1643 7.68TB SAS SSD
$130.08/TB
#2Samsung PM1643a 7.68TB SAS SSD
$199.01/TB
#3Samsung PM1643a 7.68TB SAS SSDTHIS DRIVE
$345.05/TB

Compare to similar 7.68TB SAS-12G drives

Samsung
PM1643 7.68TB SAS SSD
$130.08/TB
$999.00
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Samsung
PM1643a 7.68TB SAS SSD
$199.01/TB
$1,528.43
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Frequently Asked Questions

The PM1643a 7.68TB SAS SSD is designed for mixed enterprise workloads including virtualization, databases and analytics. Rated 1 DWPD endurance.

The PM1643a 7.68TB SAS SSD uses a 2.5" form factor with SAS-12G interface. Compatible with servers featuring U.2 or U.3 backplanes including Dell PowerEdge, HPE ProLiant Gen10+, and Supermicro with appropriate NVMe backplane.

1 DWPD means you can write the full 7.68TB capacity 1 time(s) per day over the 5-year warranty period, totaling approximately 14016TB written.

Use Case Scenarios

🏦
Legacy SAN Upgrade
Replacing spinning SAS HDDs in an existing SAS array with SSDs.
✓ Excellent fit
SAS SSDs drop directly into existing SAS infrastructure with no controller changes. SSD performance with dual-port SAS redundancy.
🗄️
Enterprise Database Tier
SQL Server or Oracle on HPE 3PAR, Dell EMC Unity, or NetApp arrays.
✓ Excellent fit
SAS SSDs are the standard for all-flash arrays requiring SAS connectivity. Dual-port provides path redundancy for dual-controller configs.
🔧
NVMe Migration Bridge
Planning NVMe move but current infrastructure is SAS-only.
~ Good fit
SAS SSD bridges the gap. Consider whether NVMe PCIe adapters make a direct NVMe upgrade more cost-effective long-term.

Maintenance & Troubleshooting

Maintenance Checklist

On installUpdate drive firmware
Check manufacturer website for latest firmware. Enterprise SSDs receive updates that fix performance and reliability issues.
On installEnable power loss protection verification
Enterprise NVMe drives have onboard capacitors for power loss protection. Verify in drive logs after first power cycle.
MonthlyCheck SMART/NVMe health attributes
Run nvme smart-log /dev/nvme0 (Linux). Monitor: Media_Errors, Available_Spare, Percentage_Used.
MonthlyMonitor write endurance consumption
Track Percentage_Used SMART attribute. At 80%+ consider planning replacement. At 7.68TB and 1 DWPD you have 14,352,384GB lifetime writes.
QuarterlyReview error logs in server BMC
Check iDRAC, iLO or IPMI logs for NVMe errors, PCIe link speed downgrades, or unexpected resets.

Troubleshooting Guide

Cause: HBA not initialized, SAS expander issue, cable fault, or incompatible controller.
Fix: Verify HBA firmware. Check SAS topology with sas2ircu or StorCLI. Test with known-good cable. Confirm drive is SAS not SATA.