Brand New 9.5MM HL-GS21N SATA Slot Loading DVD±RW Super
Drive for Apple Macbook A1278 13" 15 Unibody
Features:

Model name: HL-GS21N
Type: Internal
Interface: SATA
Dimensions: 128.0 (W) mmx 9.5 (H) mmx 127.0 (D) mm
Can replace: AD-5960S, AD-5970H, UJ868A, UJ898A, GS21N, GS22N, GS23N

Writing speeds:

CD-R: 10x CLV, 16x CAV, 24x CAV
CD-RW: Multi Speed: 4x CLV
DVD+R: 2.4 x CLV, 4x ZCLV, 8x CAV
DVD-R: 2x CLV, 4x ZCLV, 8x CAV
DVD+R Double Layer: 2.4 x CLV, 4x ZCLV
DVD-R Double Layer: 2x CLV, 4x ZCLV
DVD+RW: 2.4 x CLV, 3.3 x ZCLV, 4x ZCLV
DVD-RW: 2x CLV, 4x ZCLV

Reading speeds:

CD-ROM: 24X CAV
DVD-ROM: 8x CAV
DVD-ROM Dual Layer: 6x CAV
DVD+R: 8x CAV
DVD+R Double Layer: 6x CAV
DVD+RW: 6x CAV
DVD-R: 8x CAV
DVD-R Double Layer: 6x CAV
DVD-RW: 6x CAV
DVD-Video (CSS title): 4x CAV

Compatibility:

A1286 Late 2008/Unibody
Mac
Book Pro "Core 2 Duo" 2.4GH z 15" (Unibody) Mac
Book
Pro5, 1 MB470LL/A
Mac
Book Pro "Core 2 Duo" 2.53GH z 15" (Unibody) Mac
Book
Pro5, 1 MB471LL/A
Mac
Book Pro "Core 2 Duo" 2.8GH z 15" (Unibody) Mac
Book
Pro5, 1

Mid-2009
Mac
Book Pro "Core 2 Duo" 2.53GH z 15" (SD) Mac
Book
Pro5, 4 MC118LL/A
Mac
Book Pro "Core 2 Duo" 2.66GH z 15" (SD) Mac
Book
Pro5, 3 MB985LL/A
Mac
Book Pro "Core 2 Duo" 2.8GH z 15" (SD) Mac
Book
Pro5, 3 MB986LL/A
Mac
Book Pro "Core 2 Duo" 3.06GH z 15" (SD) Mac
Book
Pro5, 3

Early 2009/Unibody
Mac
Book Pro "Core 2 Duo" 2.66GH z 17" (Unibody) Mac
Book
Pro5, 2 MB604LL/A
Mac
Book Pro "Core 2 Duo" 2.93GH z 17" (Unibody) Mac
Book
Pro5, 2
Mac
Book Pro "Core 2 Duo" 2.66GH z 15" (Unibody) Mac
Book
Pro5, 1 MC026LL/A
Mac
Book Pro "Core 2 Duo" 2.93GH z 15" (Unibody) Mac
Book
Pro5, 1

Early 2011
Mac
Book Pro "Core i7" 2.0GH z 15" Early 2011 Mac
Book
Pro8, 2 MC721LL/A
Mac
Book Pro "Core i7" 2.2GH z 15" Early 2011 Mac
Book
Pro8, 2 MC723LL/A
Mac
Book Pro "Core i7" 2.3GH z 15" Early 2011 Mac
Book
Pro8, 2
Mac
Book Pro "Core i7" 2.2GH z 17" Early 2011 Mac
Book
Pro8, 3 MC725LL/A
Mac
Book Pro "Core i7" 2.3GH z 17" Early 2011 Mac
Book
Pro8, 3

A1278 Mid-2009
Mac
Book Pro "Core 2 Duo" 2.26GH z 13" (SD/FW) Mac
Book
Pro5, 5 MB990LL/A
Mac
Book Pro "Core 2 Duo" 2.53GH z 13" (SD/FW) Mac
Book
Pro5, 5 MB991LL/A

Mid-2010
Mac
Book Pro "Core 2 Duo" 2.4GH z 13" Mid-2010 Mac
Book
Pro7, 1 MC374LL/A
Mac
Book Pro "Core 2 Duo" 2.66GH z 13" Mid-2010 Mac
Book
Pro7, 1 MC375LL/A

Early 2011
Mac
Book Pro "Core i5" 2.3GH z 13" Early 2011 Mac
Book
Pro8, 1 MC700LL/A
Mac
Book Pro "Core i7" 2.7GH z 13" Early 2011 Mac
Book
Pro8, 1 MC724LL/A

A1297 Mid-2009
Mac
Book Pro "Core 2 Duo" 2.8GH z 17" Mid-2009 Mac
Book
Pro5, 2 MC226LL/A*
Mac
Book Pro "Core 2 Duo" 3.06GH z 17" Mid-2009 Mac
Book
Pro5, 2

Md-2010
Mac
Book Pro "Core i5" 2.53GH z 17" Mid-2010 Mac
Book
Pro6, 1 MC024LL/A
Mac
Book Pro "Core i7" 2.66GH z 17" Mid-2010 Mac
Book
Pro6, 1
Mac
Book Pro "Core i7" 2.8GH z 17" Mid-2010 Mac
Book
Pro6, 1

A1286
Mac
Book Pro "Core i5" 2.4GH z 15" Mid-2010 Mac
Book
Pro6, 2 MC371LL/A
Mac
Book Pro "Core i5" 2.53GH z 15" Mid-2010 Mac
Book
Pro6, 2 MC372LL/A
Mac
Book Pro "Core i7" 2.66GH z 15" Mid-2010 Mac
Book
Pro6, 2 MC373LL/A
Mac
Book Pro "Core i7" 2.8GH z 15" Mid-2010 Mac
Book
Pro6, 2