Selling my Synology FS3400
It has 32GB ECC DDR4 installed
4X 1Gbit Ethernet ports, 2x 10Gbit Ethernet ports, and 2x 10Gbit SFP ports

Comes with 12x 7.68TB Seagate Nytro 3331 SAS SSDs and rack rails.

I have SMART reports for all 12 drives but here’s for example showing 92% endurance remaining.

sudo smartctl -a /dev/sas1
smartctl 6.5 (build date Sep 26 2022) [x86_64-linux-4.4.302 ] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Vendor: SEAGATE
Product: XS7680SE70004
Revision: 0004
Compliance: SPC-5
User Capacity: 7,681,501,126,656 bytes [7.68 TB]
Logical block size: 512 bytes
Physical block size: 4096 bytes
LU is resource provisioned, LBPRZ=1
Rotation Rate: Solid State Device
Form Factor: 2.5 inches
Logical Unit id: 0x5000c500a1890867
Serial number: HLM04JYB0000822150Z3
Device type: disk
Transport protocol: SAS (SPL-3)
Local Time is: Wed Jul 8 09:25:01 2026 MDT
SMART support is: Available - device has SMART capability.
SMART support is: Enabled
Temperature Warning: Enabled

=== START OF READ SMART DATA SECTION ===
SMART Health Status: OK

Percentage used endurance indicator: 8%
Current Drive Temperature: 38 C
Drive Trip Temperature: 70 C

Manufactured in week 39 of year 2020
Specified cycle count over device lifetime: 10000
Accumulated start-stop cycles: 84
Elements in grown defect list: 0

Vendor (Seagate) cache information
Blocks sent to initiator = 1824931486
Blocks received from initiator = 1694244907
Blocks read from cache and sent to initiator = 0
Number of read and write commands whose size <= segment size = 0
Number of read and write commands whose size > segment size = 0

Vendor (Seagate/Hitachi) factory information
number of hours powered up = 49778.42
number of minutes until next internal SMART test = 38

Error counter log:
Errors Corrected by Total Correction Gigabytes Total
ECC rereads/ errors algorithm processed uncorrected
fast | delayed rewrites corrected invocations [10^9 bytes] errors
read: 0 0 0 0 0 2705732.969 0
write: 0 0 0 0 0 717764.284 0

Non-medium error count: 0

SMART Self-test log
Num Test Status segment LifeTime LBA_first_err [SK ASC ASQ]
Description number (hours)
# 1 Background short Completed - 49622 - [- - -]
# 2 Background short Completed - 48878 - [- - -]
# 3 Background short Completed - 48158 - [- - -]
# 4 Background short Completed - 47414 - [- - -]
# 5 Background short Completed - 46743 - [- - -]
# 6 Background short Completed - 45999 - [- - -]
# 7 Background short Completed - 45255 - [- - -]
# 8 Background short Completed - 44535 - [- - -]
# 9 Background short Completed - 43790 - [- - -]
#10 Background short Completed - 43070 - [- - -]
#11 Background short Completed - 42326 - [- - -]
#12 Background short Completed - 41582 - [- - -]
#13 Background short Completed - 40862 - [- - -]
#14 Background short Completed - 40118 - [- - -]
#15 Background short Completed - 39398 - [- - -]
#16 Background short Completed - 38654 - [- - -]
#17 Background short Completed - 37983 - [- - -]
#18 Background short Completed - 37239 - [- - -]
#19 Background short Completed - 36495 - [- - -]
#20 Background short Completed - 35775 - [- - -]

Long (extended) Self Test duration: 1800 seconds [30.0 minutes]

Please let me know if you have any questions.