IDE ribbon cable, double connectors for two devices. Separate IDE cable connections for hard drives and CD ROMs are recommended. Sharing IDE cable between hard drive and CD ROM may slow access to your hard drive. Most motherboards come with two IDE ports. Spec. as ULTRA DMA-33 but will also work in DMA-66 system. ZETDMA33 Sales Assistance: 800-832-5168 (9:30-6 Pacific, M-F) Phone-Orders and Will-Calls are welcome! Call us before you arrive in-store! Holiday Dec.24 & 31 Office are closed. For UPS Holiday delivery schedule, visit http://compass.ups.com/ All items carry a 14-day money back guarantee (15% re-stocking and without shipping charge) For OPENED Software Package with manufacturer guarantee, the customer should contact the manufacturer directly for service or exchange If "Shipping Charge" shown on your order is less than $4, you must please call or e-mail us to confirm the correct "Shipping Charge" All trademarks, registered trademarks, and names are the property of their respective owners.