RAID cache modules — check if the battery is included and verify cache size. Ship unlocked and with test reports. Firmware must match the server. Key checks: Ship with test reports. Ship UNLOCKED.
Firmware must match server
PRODUCT OVERVIEW
The the manufacturer SMB186977 is a Battery-Backed Write Cache pack, designed for enterprise RAID controllers in enterprise servers. It provides backup power to the BBWC module during unexpected power loss, ensuring cached write data is safely committed to flash memory. This is a high-volume replacement part in TPM market as enterprise servers remain widely deployed.
This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-814-7947, indicating validated use in U.S. government and defense logistics supply chains.
WHERE IT FITS
CONTROLLER→RAID_CACHE→SMB186977
NSN:5999-00-814-7947 FSC:5999 CAGE:80063 — US ARMY COMMUNICATIONS & ELECTRONICS MATERIEL READINESS COMMAND LOGISTICS ENGINEERING DIR (USA)
SPECIFICATIONS
special_features
STEEL; PHOSPHATE FIN; O/A 0.891 IN. LG 0.188 IN. EA W H; CYL SHAPE; MTS BY 8-32 PORTION 0.281 IN. LG IN
NSN
5999-00-814-7947
COMPONENT DIAGRAM
KEY FEATURES
•
Battery-Backed Write Cache Module
•
Rechargeable Battery Technology
Provides cache backup power for 48+ hours after power loss
•
Hot-Plug Capable
TYPICAL APPLICATIONS
Hardware RAID acceleration for enterprise storage
Data protection and parity management
Cache-backed write acceleration
Storage tiering and SSD caching
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURES
STEEL; PHOSPHATE FIN; O/A 0.891 IN. LG 0.188 IN. EA W H; CYL SHAPE; MTS BY 8-32 PORTION 0.281 IN. LG IN
SPECIAL FEATURES
STEEL; PHOSPHATE FIN; O/A 0.891 IN. LG 0.188 IN. EA W H; CYL SHAPE; MTS BY 8-32 PORTION 0.281 IN. LG IN
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FREQUENTLY ASKED QUESTIONS
What is SMB186977?
SMB186977 is a IBM PCI-X DDR 1.5 GB cache SAS RAID Adapter. It is classified as a CONTROLLER (RAID_CACHE).
What parts can replace SMB186977?
There are 21 known substitutes for SMB186977: X12109, C0344, 50-1934SXE and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMB186977?
SMB186977 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5999-00-814-7947. This indicates validated use in U.S. government and defense supply chains.
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