The 1570 illustrates how Super VGA matured into an inexpensive commodity. Based on Oak’s OTI077 chipset, it added higher resolutions and support for up to 1 MB of video memory, yet remained focused on compatibility and low cost rather than outright speed. Cards like this became common in 386 and 486 systems, providing capable Windows graphics without the expense of premium accelerators from Tseng, ATI or S3.

Details

Manufacturer	BTC
Model	1570 Rev. C. 1
Year	1992
Condition	Working
Reference	https://theretroweb.com/expansioncards/s/behavior-tech-btc-btc-1570-rev-c-1

Specs

Chip	Oak OTI077
Interface	16-bit ISA
Connector	VGA
Memory	1 MiB

Files

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History

2026-07-29	flagged a photo as a reference image
2026-07-24	fetched a photo from the reference
2026-07-24	created as a duplicate of RH-5QPG