The SSR-1U is an enhanced edition of the SSR-1, featuring USB access to the microSD card and a fourth serial channel. See the SSR-1U product page for complete details.

Standard version SR1U22T supports up to 230.4k baud recording.
High Speed version SR1U22TH supports up to 921.6k baud recording and includes an upgraded microSDXC card.

Includes 9 inch mating connector, microSD card, and 1220 coin cell lithium backup battery for the real-time clock.

Note that the backup battery may be excluded for international air shipments that disallow lithium batteries.

Part numbers:
SR1U22T - SSR-1U standard configuration
SR1U22TH - SSR-1U with High Speed option
SR1UCCT - SSR-1U with 3.3V CMOS channels instead of RS-232
SR1UCCTH - SSR-1U with 3.3V CMOS and High Speed option